There is far too much information in this book to be summarized in a review. Suffice it to say that the book is fascinating: the writing is clear, the conclusions sound, and the research extensive. For most other varieties of snake--other colubrids, boidae, vipers, even elapids--there is no shortage of books, and books covering even individual species are plentiful (think how many books are devoted exclusively to Boa constrictor ssp., for example). And while most of these books are worth reading once, the majority say little that all the others don't say, too. Garter snakes, however, seldom rate more than a paragraph or two in any snake book, and there are very few books devoted exclusively to garters (I can think of only one, offhand). This book, however, gives garters the attention--and gives the reader the information--that the species deserves. If one is a ratsnake enthusiast, or a python person, or mad about milksnakes, there are plenty of books worth reading, but few that are indispensable. If one is a breeder, researcher, or simply an interested layperson regarding garter snakes, however, this book is one that simply cannot be done without.