To my mind this book is the single best moderately advanced reference on rockets, orbital mechanics, and space technology. Although it dates from about 1950, the physical principles it lays out have not changed. Rather, the predictions it made have largely been fulfilled. Because it is a very small book, it covers the essentials everyone with the necessary mathematical knowledge should know.

The book is at a level to be understood by one who has had a first-year college course in calculus and physics. Much of the mathematical detail is contained in an appendix, so that the remainder may be appreciated by a wider audience. I was able to read the whole in my sophomore year in high school, but I had to work pretty hard; in fact, I would say I learned calculus and elementary mechanics mostly from this book.

The final chapter addresses the question of why space travel is a profoundly important human goal. I recommend it to anyone, skeptic or true believer. In my youth, it inspired my own desire to learn to write well.

This book has been mostly out of print, unfortunately. A reprinting seems to have been issued in 1985, so readers may be able to find copies of that.

I am a college senior and I used this book to research a large paper. I found this to be a very useful tool. I really like the way the books of the Bible are broken down into different sections. This makes it easy to understand. I also like the way that the book explains something and then gives the specific verse(s) in the Bible it deals with. I really found this to be an excellent and useful book. I looked at several different Bible dictionaries and this one is the best I have found. I highly recommend it.

There are famous researchers in any field of sceince. These two authors are just that in physical geography. I read this book for about six years while slowly studying the subject part-time. All the terminology is there with good diagrams and good maps. I think it is an affective introduction to the advanced reading yet is complete enough to be your only book on the subject too.

At present, there are 4 books in print that provide a survey of the books of the Apocrypha. The oldest, An Introduction to the Apocrypha (1957), is an excellent survey by Bruce Metzger. It includes thorough summaries of each book, and a good history of these books in the Christian church. However, it only discusses the 15 books of the Apocrypha recognized by the Western churches. It does not discuss 3 and 4 Maccabees and Psalm 151, which are included in the Bible of the Eastern Orthodox churches.

More recent publications include Invitation to the Apocrypha by Daniel Harrington (1999) and Stories Between the Testaments: Meeting the People of the Apocrypha (2000) by Marjorie Kimbrough. Harrington's book provides background information, a well written and thorough summary of the contents, and the significance of each of the 18 books of the Apocrypha. The author's focus on the issue of suffering in the books of the Apocrypha further adds to the value of this book. However, this book provides only a very brief discussion about the history and canonical status of these books in the Christian church.

Kimbrough's book provides good, but brief summaries of each of the 18 books, along with discussion questions at the end of each chapter. However, this book provides only a very sketchy (less than 2 pages) discussion on the history and canonical status of these books in the Christian churches.

David deSilva's book, Introducing the Apocrypha, begins with an excellent discussion of the value of the Apocrypha, and a good overview of the history and canonical status of these books in the Christian church. He emphasizes the importance of these books for all Christians, regardless of one's position concerning their canonicity. He then has a chapter on the historical context in which the books of the Apocrypha were written. The chapter on each book of the Apocrypha includes a discussion of the structure and content of the book, the textual transmission, the author, date and setting, the book's genre and purpose, the formative influences in the writing of the book, and the book's theology and influence. Overall, of all the books in print, deSilva's book provides the best and most thorough survey of each book of the Apocrypha and the history of the Apocrypha in the Christian church. The author combines a thorough knowledge of his subject with a writing style that is easy to read and understand.

Should one be interested in a more detailed study of the history of the Apocrypha in the Christian church, you should obtain The Apocrypha in Ecumenical Perspective, edited by Siegfried Meurer.

This book provides valuable information regarding naval engineering. Its technical approach helps one understanding the basic principles of warship propulsion. If someone is looking for technical data on naval propulsion this is the right choice.

This is truly a monument to the architecture of proteins: a gorgeous tour of the structures that dwell within us. The "frozen music" of biology is clearly presented in beautiful detail. The computer-generated renderings give pause to anyone who wonders what God was up to when She thought about creating life. Proteins, as represented here, are Her finest efforts. Visually stunning is only the most obvious aspect of this amazing introduction to structural genomics (proteinomics): the systematic study of protein structures. This is a serious graduate level textbook.

The text should be considered for any introductory graduate level course in biochemistry. Beginning with sound chemical principles, the text lays a solid foundation for the concepts of secondary and tertiary structure within protein. The author builds a superstructure from which to view the motifs of cofactor binding domains and active sites in enzymes.

Each chapter concludes with exercises, problems and "weblems". The weblems underscore the fact that structural genomics, a branch of bioinformatics, is a hot topic in the biotech arena. The weblems ask the reader to pursue ideas on the world wide web. The author provides the reader with a wealth of websites ranging from browser plug-in software for viewing crystal structures, to sources of those structures, to sequence alignment servers which will allow the student to do real research. Well thought-out, the weblems posed are useful to the student in exploring the topics of each chapter.

The author sticks to protein architecture avidly, issues of how proteins fold or how structure might be predicted from amino acid sequence are presented to the reader. It is a credit to the author that he does not speculate on these very hot research topics. The bibiliography for each chapter is current to mid-2000.

A student using this text will have greater insight and understanding of the literature of protein structure, folding, and prediction of structure. This book would also be a useful reference to the veteran practitioner, summarizing an early 21st century look at this field.

I liked this book, because it is such a great play!

I read Irish Nocturnes with a great deal of pleasure. Everyone of the 18 essays brought me closer to what one might refer to as the unexpected beauty in our lives. One will definitely fall in love with life. Everyday experiences are told with a touch of wonder to them. As the essays grow deeper in lyricism and poetry, so does the universal appeal of the sentiments they invoke, including longing, nostalgia, gentleness,childlike optimism,adult realism, and stability. The author, Chris Arthur, is a master of sharing personal experiences in a way that they can become one's own. Although I have not been to Ireland, I find myself sharing the author's pathos for Ireland's beauty and strength. I recommend this collection of essays to everyone interested in that which is both beautiful and thoughtful.

I used this book, as well as "What Do We Know About Judaism" and "What Do We Know About Christianity", as part of an introductory elementary homeschool course in world religion and culture. All three were excellent, covering a lot of ground with clear text and interesting photographs and line drawing illustrations. Today I ordered the ones on Hinduism and Buddhism for next year -- despite the hardback/library binding cost. Both my student and I learned a lot, enjoyably!