I FOUND THIS BOOK VERY USEFUL AS I TRAVEL AROUND ON MY VACTION TOURS. I SUGGEST ALL OWN A COPY. PAUL

This is an excellent supplement for leaning introductory chemistry. I found chemistry very difficult in the first semester. Once I found this book in one of the shelves in my chem classroom and thought it was really good. I found it in amazon.com and bought it. I started reading it and found chemistry getting eaiser and eaiser. My grade went up from a C+ to an A in the second semester. It uses the most concise words to explain the complex ideas. Chemistry is not an easy subject for many people. Having an useful supplement like this book could really make a big difference.

I can recommmend this book in three ways-as a coffee table book, as a map collector's reference book, and as a history book. As a book out on your living room table, visitors will be sure to pick it up and review it. As a collector's reference it is wonderful. A good overview of various maps, some one of a kind, with a great writeup on each map and mapmaker. It may become a "reference" book, whereby the maps shown are more desirable to collectors simply because they are listed in "Cohen". Finaly, it is a great history book dealing with the exploration of America westward. Highly recommend to anyone interested in maps and mapping, or in American history.