Montgomery, Sy.The Snake Scientist. Houghton, 1999, 2001. For readers in grades 4 to 7.
Schafer, Susan.Snakes. Benchmark, 2002. For readers in grades 3 to 6.
Reptiles
Cogger, Harold G., and others, eds.Encyclopedia of Reptiles and Amphibians. Academic, 1998. Beautifully illustrated and authoritative guide from the world's leading herpetologists.
McCarthy, Colin, and others.Reptile. Dorling Kindersley, 2000. From the popular "Eyewitness" series, an original and engaging look at reptiles. For middle-school readers.
Mattison, Christopher.The Encyclopedia of Snakes. Facts on File, 1995, 1999. Natural history, origin, and evolution of snakes for naturalists and amateur herpetologists.