- Geckoes: Biology, Husbandry, and Reproduction
- Poison Frogs (Professional Breeders Series)
- Psychics, Crooks and Unexplained Phenomena
- Amphibians and Reptiles of Madagascar, the Mascarene, the Seychelles, and the Comoro Islands
- Thrown Free : How the East German Sports Machine Molded, Trained, and Broke an Olympic Hero and How He Won His Fight for Freedom