I have 16 different field guides for various parts of the world (6 for North America, 3 for Belize, 3 for the amazonian regions, 1 for Europe, 2 for Australia, 1 for China, and 1 for Indonesia). I have dozens of books on random topics such as the genetics of insular cyclura or incubation techniques for American alligators etc... I have a couple of books that just looked fun like the ones I mentioned above. I have dozens of old husbandry books including one from the early 80's that is pretty eye opening when looking at how far the hobby has come. I have a book that explains the roots of all of the latin names, and I have a pile of magazines including Reptiles magazine, Herp Nation, Herpetologica, and Copeia.