Alvarez, Walter.T. Rex and the Crater of Doom. Princeton University Press, 1997, Vintage, 1998. Engaging presentation of the leading theory of dinosaur mass extinction due to asteroid impacts.
Behm, Barbara J., and Jean-Christophe Balouet.Extinct Wildlife. Gareth Stevens, 1997. Explains the causes of extinction, provides examples, and suggests achievable solutions. For younger readers.
Hecht, Jeff.Vanishing Life: The Mystery of Mass Extinctions. Simon & Schuster, 1993. Chronicles mass extinctions from the time of the dinosaurs through that of the dodo and discusses topics such as geology, paleontology, asteroid and comet impacts, volcanoes, and humans incursion; with illustrations and photographs. For young adult readers.
Stearns, Beverly Peterson, and Stephen C. Stearns.Watching, from the Edge of Extinction. Yale University Press, 1999. Describes current efforts to fend off the extinction of some of the world's most endangered species.
Vergoth, Karin, and Christopher Lampton.Endangered Species. Rev. ed. Franklin Watts, 1999. Introductory work that offers conservation tips. For middle school and high school readers.