As other reviewers have said, Taylor and Wheeler accomplish something marvelous (and by conventional wisdom impossible), making a non-trivial portion of general relativity accessible to physics undergraduates. But be warned that "accessible" does not mean easy! A good background in special relativity is essential, for example from the authors' earlier book Spacetime Physics. Beyond that, readers must be prepared for convoluted reasoning and heavy duty algebra in some parts of the book, covering the more esoteric optical effects of black holes and the effects of rotation. It was an effort for me to get through this book - but well worth it.

This book is different from every other introduction to general relativity I know. And better. The eminent authors connect geometry directly to physics, bypassing tensors. Curvature in space is detected by very simple length measurements; curvature in time, by the lengthening of periods of oscillations. There are nuggets in almost every page. I loved the demonstration that you don't really need coordinates to describe geometry: the shape of a boat is reconstructed entirely in terms of distances. Their dynamical principle is the maximum proper time principle. The way they derive energy and momentum from this principle is sterling physics. You'll learn a lot of general relativity in this book. Not all of it. But, learning to love it, you'll learn the advanced topics that cannot be treated this way by yourself, in other books. Perhaps in the huge Misner, Thorne, Wheeler.

I have not yet finished reading this book but my excitement over its brilliance forces me to comment. This book is shear magic in its ability to explain very difficult and strange phenomena in an intuitive and simple way. I have read the authors' book SpaceTime Physics as well as GR by Schutz and can do the tensors and all that; yet I am in awe of the ability these authors have of succeding at the near impossible. Using the study of black holes as the motivation for GR study is perfect. I love the choice of the variational principle to cut to the heart of the math. I recommend this book to anyone for self-study who has a smattering of calculus (not much is really needed). I am looking forward to studying Kip Thorne's membrane paradign book next. Gentlemen, kudos in the highest!

Patricia Rife has made a scientific subject meaningful in the comprehensible biography: "Lise Meitner and the Dawn of the Nuclear Age." This is a well researched and an acknowledgement of a woman's contribution to peace and medical technology. Lise Meitner devoted her life to research and was denied many Nobel Peace Prize awards because of her sex. This book is for every young woman, public library, high school library or anyone interested in an outstanding book of historic subjects. Special accolades to the author, Patricia Rife, for her professional treatment of this manuscript.

This book details the Confederate Service of Sumner Cunningham. From his early service, POW life and his coming of age during the Battle of Franklin. I would encourage you to get this book. I would also suggest the book Company Aytch by Sam Watkins. Both are good reading about living and dying in the Army of Tennessee.

I am not a Linguist, but this book helped me to appreciate all of the differing theories and various fields within what is known as linguistics. If you are seeking a book that is simple to read, yet very comprehensive, I recommend this volume. If you enjoy languages, speech development, regional dialects, language acquisition, theory of language, language trends, and more - this book is for you.

Major disciplines coverd include: phonetics, morphology, syntax, and semantics. Also included in this new addition are new chapters on second language acquisition and psycholinguistics.

One of the best features of this text is how well it is laid out. It is a pleasure to peruse and even study because of it's logical and user friendly format.

If you love anything about language- whether knowing it's origins, or what part of the mouth is used to create certain sounds, or how language changes over time and for what reasons, or a host of other curiosities, you will certainly enjoy the wealth of information within Contemporary Linguistics!

"Contemporary Linguistics" (CL) is a wonderfully clear and accessible introduction to the field of linguistics. The authors begin by introducing the methodological assumptions that underlie present day Chomskyan linguistics and then reserve a chapter each for almost all major research directions within linguistics.

One thing in particular that I liked about the format of CL was the treatment of more advanced material (marked "Advanced") in each chapter. The "Advanced" sections augment the material in the rest of the chapter and are placed in logical sequence with the rest of the material instead of appearing in an appendix at the end of the chapter. For example, a section marked "advanced" on X' (read X-bar) Theory appears fairly early in the syntax chapter. Having some knowledge of X' Theory allows the reader to proceed to examine the rest of the material with the knowledge that there exists an intermediate level of structure between lexical categories (N, V, ...) and phrasal categories (NP, VP, ...).

Most chapters in CL are pretty well written and technical tools to treat linguistic phenomena are almost always introduced at the correct juncture. However, CL does not treat Innateness properly (why Innateness and arguments for and against Innateness), and has a weak chapter on semantics. The reader would do well to augment the material in CL by reading Pinker's "The Language Instinct" or Jackendoff's "Patterns in the Mind" for a non-technical introduction to some ideas in linguistics, as well as sections of De Swart's "Intro to Natural Language Semantics" to get an idea of how semantics is done. If the reader is interested in looking at language from a cognitive science perspective, she would also do well to read most of Gleitman et al's "An Invitation to Cognitive Science: Language".

All in all, CL provides a relatively painless initiation into linguistics and I highly recommend it.

Speaking as a newcomer to the subject, I found this book to be an excellent intro. Very useful.

The interrelation of gravity and spacetime is a formidable subject to describe; the author does so with excellence. The diagrams and charts reinforce the understanding.

Unfortunately when a key subject left me rather clueless, (Boundary of a Boundary) I spent quite a few frustrated hours being uncertain on whether or not to continue reading without the support of the material on those pages. As it turned out, the subject became clearer once I read on and returned again. I never did grasp it as completely as the rest of the book.

The book contains the most enlightening description of transverse wave propagation I've ever seen. It also helps solidify one's understanding of interval and relativity.

Not a book to be read overnight.

This author is one of the most briliant, the most optimistic, and the most enthusiastic writer in all of physics, and in this book, his competence as a physicist and his deep fascination with the physical world is brought out dramatically. He is clearly a man who is feeling a powerful sense of exhiliration of the discoveries now taking place in all areas of knowledge. His foundation and his theme in the book is a simple geometric principle, namely that the boundary of a boundary is zero. He then guides the reader, assumed to have a rudimentary knowledge of mathematics, in a splendid presentation of the power of this principle in gravitational physics.

The first chapter is an overview of the history behind the subject, via the work of people who contributed to our current understanding of gravity. And then, with a masterfull use of diagrams he gives the reader a taste of the simplicity of the equivalence principle and the need to tack on an additional dimension (time) to the 3-dimensional space of everyday experience. The Pound-Rebka experiment is discussed as one that illustrates the idea of the spacetime interval, and the role of time dilation is discussed via the possibility of practical space travel. And such enthusiasm in his dialog: "the universe will grow ever more exciting", he says, and looking at the developments now taking place in today's science, he is indeed correct.

Chapter 4 gives a fascinating overview of what the author calls the boomerang, which illustrates the action of curvature on nearby test masses. This thought experiment involves the motion of a spacecraft through an imaginary tunnel through the Earth. The author analyzes the motion from the standpoint of Newtonian physics and general relativity. Curvature as the "grammar of gravity" is the topic of the next chapter, with illustrations of the paths of ants on spaces of zero, positive, and negative curvature. A very intuitive treatment of parallel transport around a closed path on a curved surface is given. The tides are discussed as a natural manifestation of the gravitational influence of the Moon on Earth.

Must difficult for a layman to understand is how spacetime acts on masive objects, but the author explains it brilliantly in the next chapter, taught via the concept of "momenergy". This entity is a 4-vector, and the author uses it to show how its creation in a spacetime region can be written as the sum of 8 terms, reflecting the fact that the "boundary" of a four-dimensional block in spacetime consists of eight three-dimensional cubes. That the contents of these cubes sum to zero is the famous "boundary of a boundary is zero", which is discussed in the next chapter. This chapter is one of the best explanations ever given (at this level) of the physics behind spacetime curvature and massive objects. The actual mathematical quantification of curvature is detailed in chapters 8 and 9, using elementary mathematics. The author discusses nicely the famous Scharwzschild geometry.

Concepts of a more concrete nature are discussed in chapter 10, wherein the author discusses the famous Pound-Rebka experiment and planetary motion. This is followed by a discussion of the elusive gravitational waves in chapter 11. Again with a clever use of illustrations, the author explains the transverse property of gravitational waves, and compares gravitational waves with electromagnetic waves. The role of the quadrupole moment in the creation of gravitational waves is brought out briliantly by the author. He discusses briefly various attempts to detect gravitational waves.

Black holes are the topic of chapter 12, wherein the famous Penrose process for extracting energy from a black hole is discussed, and the "no-hair" theorem for black holes. A neat symbolic representation of the Bekenstein number of a black hole is given. The role of the Hawking process, connection quantum processes with the physics of black holes is briefly discussed. The author ends the book with a look at the expansion of the universe, the missing mass problem, and another very interesting topic that has gained much attention recently: the concept of gravitomagnetism. This is a "weak-field" prediction of general relativity, and predicts that the rotation of the Earth should influence the motion of orbiting satellites. This topic is currently bringing together ideas such as the quantum Zeno effect, Mach's principle, and the notorious "frame dragging" effect in general relativity. Experiments do measure it are currently in play and in the proposal stage, namely the LAGEOS and LAGEOS II experiments, which measure the gravitomagnetic orbital perturbation, which is known as the Lense-Thirring effect.

This is truely an amazing book. Wheeler does for General Relativity what Hawking did for Cosmology in "A Brief History of Time", and in some sense they are similar books. However Wheeler has a unique, quirky style of writing that makes the book an entertaining adventure to read.

Wheeler is able to pull off a major accomplishment: He explains Einstein's General Relativity in a clear, straightforward manner, with a minimum of math. It's "conventional wisdom" that General Relativity is seriously serious stuff, the domain of hardcore Physics geeks. That doesn't faze Wheeler. He leads the reader along, gleefully pointing out the scenery, making it all look quite simple and understandable. And then all of a sudden, when you least expect it, you find he's derived and presented Einstein's field equations with only a teensy-tiny bit of algebra! Even if you know this stuff already, his presentation makes you think about it with a new perspective.

And did I mention the illustrations? They are really exceptional.

If you have any interest or dealings with GR, ya gotta have this book!

Inferno is a book that I believe should be read by everyone. College students, parents, movie buffs, etc., will all be able to pull something from this book. At face value, this book can be just a simple adventure of a man through Hell. It can also be a stepping stone into the world of Christian and Greek mythologies.

Inferno is the story of Dante (same as the author) who becomes lost (spiritually/mentally) at the age of 35 and finds himself at the base of a path leading him on a long and wonderous journey. Dante meets Virgil (see the Aeneid) and Virgil becomes Dante's guide through Hell. Along the way Virgil explains why certain people are being punished and Virgil will communicate with his contempories (as Dante will communicate with his own.)

Ciardi's translation keeps in touch with Dante's terza rima rhyming scheme. This is a strict translation, where some words may seem slightly out of place. There are liberal translations out there, but not in such a wonderful rhyming pattern. Ciardi also ends each Canto (chapter) with infomation as to characters and information that readers may not know. (As Inferno was written in the 1300s.)

And, if nothing else and you're really bored from reading this, try to figure out where you would fit in Dante's Hell.

Dante's Inferno, the best of the three books of the Divine Comedy, is a revelation. The imagery is powerful, the language wonderful, it description of damnation almost terrifying. It is one of the most vivid religious books ever written, on par with Paradise Lost. Dante does not just recite catholic cannon, however. He has many contemporary references to Italian politics (a subject I knew little about before reading the Divine comedy), to church politics, to classical works such as Homer and Herodotus. To read it is to see the world in the middle ages, long before the reformation. Do not be intimidated by the prospect of reading a 14th century epic poem. After the first page, the style will become familiar and you will revel in the intricate detail of Dante's underworld.

As for this particular edition, it is excellent. Ciardi gives a very good translation and, unlike other translators, preserves Dante's occasional scatalogical references and profanity. In addition, there are several useful maps of the Inferno as well as copious, informative (and necessary) endnotes at the finish of each Canto. The only way the edition could be better is if the notes were at the bottom of the page, but the Cantos are short enough that flipping to the end to read the endnotes is not the finger-breaking maneuver you might find in other editions.

Dante Alighieri's three part epic The Divine Comedy ranks highly among the literature of the world. Written in early Italian and rhymed in terza rima, it's 100 cantos display impressive allegory and use of scholastic philosophy. In INFERNO, the first volume, the narrator finds himself "half of our life's way" (around 35 years old) and lost in a forest at night. When day breaks, three savage animals bar his escape. The Roman poet Virgil (best known for his AENEID) appears and tells him that Heaven has sent him to lead Dante through Hell, Purgatory, and finally Heaven to bring him out of his spiritual malaise.

Dante's Hell differs from the traditional view of everyone together amongst flames. Here the dead receive different punishments based on their sins. Thus, the lustful are caught up eternally in a whirlwind, and astrologers and magicians have their heads reversed (so those who tried to fortell the future can only see their past). Nowhere, however, does anything seem wrong. The dead are placed into Hell not by an unjust God, but by their own decisions and actions. INFERNO is a slow beginning, most of the grace and beauty of the Comedy lies in the subsequent volumes, PURGATORIO and PARADISO. However, this first volume has a solid role in the allegorical significance of the Comedy. Dante wrote not just a simple story of quasi-science fiction, but a moving allegory of the soul moving from perdition to salvation, the act which the poet T.S. Eliot called "Mounting the saint's stair". While INFERNO may occasionally lack excitement on the first reading, the next two volumes thrill and upon reading them one can enjoy INFERNO to the fullest.

I believe that the best translation of INFERNO to get is that of Allen Mandelbaum, which is published by Bantam (ISBN: 0553213393). Mandelbaum's verse translation melds a faithful rendering of the Italian with excellent poetry, and has been praised by numerous scholars of Dante, including Irma Brandeis. Here's an example from Canto XIII, where the poet and Virgil enter a forest where the trees are the souls of suicides:

"No green leaves in that forest, only black;
no branches straight and smooth, but knotted, gnarled;
no fruits were there, but briars bearing poison"

Mandelbaum's translation also contains an interesting introduction by Mandelbaum, extensive notes (which are based on the California Lectura Dantis), and two afterwords. The first of these, "Dante in His Age" is an enlightening biography of Dante and how he came to write the Comedy while in exile. The second "Dante as Ancient and Modern" examines Dante both as a wielder of classical knowledge and as a poet working in a new and distinctly late-Medieval style (the "dolce stil nuovo") which broke poetry out of the grip of Latin and made it something for people of every class.

This book in my opinion is one of the most overrated texts in science. It is voluminous and comprehensive and perhaps serves best as a reference for topics not easily found in other textbooks. However this text fares very poorly from a pedagogical point of view. The first four hundred or so pages introduces tensor analysis to the reader. The material is presently in overly simplistic terms to the point where the reader is treated as though he/she had nothing more than a first year calculus background. Differential forms for instance are likened to "bongs of (a) bell"; tensors are "machines", etc. The reader is better off with Bishop and Goldberg or Frankel. The lack of rigour and informal treatment of the mathematics sets the tone for the loose, heuristic style that is to follow for the rest of the book. Definitions are imprecise and clear proofs lacking. The boxes and excercises punctuating the text distracts from the reading.

In short, if you feel that a mastery of the material must be gained from precise definitions and rigorous presentations rather than intuitive notions and sketchy derivations this book is not for you. Wald's is much better. For those of you less comfortable with differential geometry I recommend Weinberg's which is also very well written and readable. Misner's will benefit two types or readers. First, if you are a highschool student or college freshman with some calculus background you can gain some conceptual understanding of general relativity and how it works. You may enjoy looking at the the many diagrams in this book and reading some of the boxes. Second if you are already well trained in general relativity you can benefit by using this book as a reference, for it has much material. For the rest you can safely leave this book alone.

The world would be less beautiful if this book didn't exist. What a remarkable feat! The sequence that leads from the very basic concept of spacetime to the computation of the components of Riemann tensor by using forms and the Cartan equations is unparalleled. A lot of mathematical formulas follow from simple reasoning and ... drawings! The introduction of Schild's ladder to motivate the axioms for a (torsionless) connection is very clever. The introduction of curvature by means of geodesic deviation is very intuitive. The derivation of the expression for the geodesic deviation (and, consequently, of the expression for the Riemann tensor) is, again, completely intuitive. The chapter on spinors is very beautiful and useful. Still, I would never recommend this book for a beginner. For it is absolutely non-linear. I have been told that this corresponds to the ideas of Wheeler's concerning learning. Sometimes an argument at chapter 4 (say) depends on something that is intr! oduced in chapter 8. Also, the three tracks (first, second and boxes)interfere all the time, requiring much discipline from the reader. If, however, you already learned the basics (for instance, in Landau, Lifshitz), so that you know what you are looking for, "Gravitation" is unbeatable, of a class apart. I've seen mathematicians adopting the language introduced by them to explain tensors: a slot for each argument of the multilinear machine! Last, not the least, the Index and the References are of the highest quality. This shows respect for the readers. Drs. Misner, Thorne and Wheeler are to be congratulated.

This book can be divided into three logical parts. The first part includes an overview of 4 dimensional physics (spacetime physics, chapter 1), an introduction to special relativity (physics in flat spacetime, chapters 2 to 7), an introduction to the tensor calculus (the mathematics of curved spacetime, chapters 8 to 15) and describes in detail Einstein's general theory of relativity (Einstein's geometric theory of relativity, chapters 16 to 22).
This first part is the best introduction to the theory of relativity I have ever read. The mathematics is introduced in a very comprehensive manner, there are lots of exercises where the reader can get used to the tensor calculus. The physical explanations are just brilliant and what is more important general relativity is introduced in the manner Einstein itself viewed it: as a geometric representation of gravity! Other books on this subject formulate general relativity only algebraically (like quantum theory) but this hides the importance of the idea that all gravitational effects can be extracted from the geometry of spacetime. The algebraic formulation may be regarded as more modern by some authors, it must be said however that no algebraic formulation managed to give more physical insight. The algebraic treatment tries to unify the view of general relativity and quantum field theory, but the physical discrepancies between the two theories remain unsolved.
The second part starts with the application of general relativity to stars (stars and relativity, chapters 23 to 26), goes on to the universe (the universe, chapters 27-30) and to black holes (gravitational collapse and black holes, chapters 31 to 34), and describes finally gravitational waves (gravitational waves, chapters 35 to 37) and experimental methods (experimental tests of general relativity, chapters 38 to 40).
This second part is a good overview, but many details of the computations of the applications are not shown. For the readers interrested in the details the two volume book by Zel'dovich and Novikov "Stars and Relativity"/"The Structure and Evolution of the Universe" is much better (but also much longer).
The third part finally describes the frontiers of general relativity (frontiers, chapters 41 to 44). Like part two it gives a good overview not showing many computational details.

Want understand what Stephen Hawking and his colleagues are talking about, but have no idea about the history of cosmology? Then this is the book you're looking for.

This collection of texts taken from writings by Plato, Copernicus, Galilei, Ptolomy, Einstein, Hubble and other theorists discus what the universe is made of, how it works and (ultimately) what our place is in the Grand Scheme of Things, offering good insight into how our knowledge of the universe has developed over the last 40 centuries from Babylonian times to the 20th Century.

As this book was originally published in 1957 and reprinted in 1965, the latest theories are not included. It is therefore not a book for mathematicians or physicists interested in learning the latest theories, but rather a book for those interested in a well-written, general introduction to the field of cosmology.

July 7, 1999 I would like to take a minute to thank Audio Scholar for putting together this audio novel which consists of 4 essays on the theories of the Universe. I thoroughly enjoyed it as did my 17 month old son who gets to listen to them to as his bedtime stories. One night he kept me up until 2am until I turned the tape back on! Normally he just gets to listen from 8 - 10pm. I would like to encourage Audio Scholar to produce more of these types of edutainment audio programs on tape or CD. In many instances I wouldn't mind seeing the programs extend to 4 tapes or CD's. I love listening to scientific books on my way to work and also love to share them with my 17 month old son as his bedtime stories. My budget for this type of audio edutainment is $1,000 a year and the more science and physics books abridged the better. I would love to see the following subjects abrigded to audio for distribution through Amazon.com. Maths, sciences, physics, astrophysics, geology, any and all space related topics, gravity, unified field theory, electromagnetics, electronics, microproccessor design, optics, micro-optics, electro-optics, light and the theory there of, satellites, satellite orbital mechanics and related theory. I do not have time in my busy daily schedule to read very much, but do I have five hours a day to listen and learn. If you make it I will support it. Arnold D Veness

The physics is fine but this is an autobiography. What kind of a man is Wheeler? I got the impression he spent as much time avoiding offending anybody important as he did on physics. He sounds like an amiable sycophant.

Having noticed over the years that Prof. John Archibald Wheeler's name turns up in an amazing variety of physics-related articles and anecdotes, I was particularly primed to read his autobiography. The book doesn't follow a simple from-birth chronology, but rather begins with Wheeler teaching at Princeton and volunteering to meet the ship carrying his mentor, Niels Bohr, at a New York City dock in January of 1939. From that pivotal moment at the brink of World War II, Wheeler fills out his story by reaching back to childhood and forward to his long career in teaching, research, and national service. We learn of his brother Joe, whose body lay in a foxhole on an Italian hillside until it was reduced to bones. Wheeler reminds us that if the Manhattan Project had geared up one year earlier, the lives of his brother and many others might have been spared.

Wheeler's remarkable character pervades the book and helps make it unique and interesting. In a profession legendary for strong intellects and egos, he has achieved and maintained a pomposity coefficient of zero. His judgments of other people are unfailingly generous, but also astute enough to be interesting and revealing. He provides candid firsthand impressions of legendary figures such as Bohr, Einstein, Oppenheimer, Teller, Ulam, Heisenberg, Fermi, Szilard and Feynman . We also learn about many less well-known colleagues, friends and students whom he finds memorable for various reasons. In contrast to the eminent-scientist stereotype, Wheeler has always enjoyed teaching undergraduates and is genuinely interested in the problems and aspirations of the young people entrusted to his care.

Like the brilliant George Gamow, Wheeler has a talent for explaining difficult concepts and illustrating them with whimsically inventive diagrams. The book's autobiographical threads are interwoven with a rich tapestry of subtle but plainly-spoken physical insights on dozens of topics, some arcane enough to leave even the author slightly bemused. I believe anyone interested in physics will find a personal revelation or two among Wheeler's lucid, informal scientific explanations. There are touches of Gamowesque humor too, such as his theory that the fates somehow conspired to entangle him with a string of Hungarian emigres.

The title concepts of the book -- Geons, Black Holes and Quantum Foam -- were all named by Wheeler himself. He began his career at the minute scale of particle physics, moved on to the grand sweep of relativistic cosmology, and finally circled back to the hyperminuteness of quantum foam. Of course there is nothing really disjointed about such a journey, since connections among the nested scales of nature constitute one of the grand unifying themes of physics.

During his tenure at Princeton university, John Archibald Wheeler has served as the mentor to such outstanding physicists as Richard P. Feynman, Kip Thorne and Hugh Everett. He was also great friends with such individuals as Albert Einstein & Niels Bohr. In short, his contributions to physics have been indispensable.

This present work of his traces his life, a life that is (as the cover says) one of science. However, one of the nice facets of this book is that it goes beyond just the laboratory & reveals the personal life of this great man. We learn of the moving death of his brother in WWII, his worries and concerns over nuclear war (as well as the grapples with his conscience that he endured over the invention of the hydrogen bomb) and many other aspects of his life. He also tells stories of some of his most memorable students; not all of these were necessarily his most gifted pupils. Above all, Wheeler reveals a genuine human passion that has characterized his approach to science over the greater part of this century. One of the best biographies of a scientist I have ever read.

Reading some of the reviews below, I'm reminded of a cartoon showing Moses parting the Red Sea. One Israelite is grumbling to another, "It's a bit damp in there, isn't it ...."

I know the folksy style of this book can be off-putting to some. But if anyone thinks that the *content* is dumbed down, it can only mean they haven't scratched below the surface and discovered the extraordinary wealth of examples, insightful applications and programmed exercises. Taylor and Wheeler (John Wheeler, one of the outstanding theoreticians of our time) are attempting to acculturate students (ouch) to the counter-intuitive world of special relativity, set in the context of general relativity. That takes more than a collection of formulas given in a handout at the start of the semester. You don't need heavy math, but you do need much thoughtful pedagogy. They succeed brilliantly and, contrary to some opinions, do so without glossing over anything of importance. The only aspect of basic relativity not touched on is the covariant formulation of the electromagnetic field equations (I defy anyone to do that without a couple of years' calculus). In short, the book is far from trivial. It is accessible to any numerate high-school graduate able and willing to think. I can't imagine how it could have been done better.

P.S. Complimentary copies should be sent to Latour, Irigaray et Cie, Paris.

I use this book as a supplement to an online relativity class at drphysics.com. Students love this book because it explains the concepts of relativity clearly and without unnecessary mathematical complication. Introductory physics classes have been using this book (including the earlier edition) for decades. Don't be fooled: while it is accessible to students at the elementary level, it is useful for readers at all levels.

Not only is John Wheeler a consummate theoretician, he is also a gifted teacher. The solved examples were carefully chosen to elucidate key points. The remaining exercises will help the reader understand special relativity in great depth.

The first edition of _Spacetime Physics_ was written before the classic general relativity text _Gravitation_ by Misner, Thorne, and Wheeler. The same brilliant exposition methods were used in the much thicker general relativity text. Both books belong in every physicist's library.

I have only the first edition, however, the fundamental concepts of invariance of the (space-time) interval and the curvature of spacetime defining gravitation are presented in an intuitive way (other comments notwithstanding). This book, followed by Gravitation and Gravitation and Inertia all co-authored by John Archibald Wheeler (Princeton Univ), constitute a classic trilogy in gravitation, relativity, physics, and methods of thinking. If you think this book is a baby book, pick up one of the other two. If you think it's too hard you need to do some elemental studying. If you think this book fails to make these concepts intuitive, you haven't understood it. It is not intended for those who don't like to reason nor for those who dislike math. Between this book and the other two should lie several courses in calculus, ordinary and partial differential equations, differential forms, and possibly a lower level differential geometry course. As Feynman would say, "this is how the world works".