Mondimore, a psychiatrist and author of Depression, the Mood Disease (LJ 4/1/90), adds this unique and thoughtful study of the growing number of titles on the subject of homosexuality. Much of the information here is not groundbreaking (see Simon LeVay's Queer Science: The Use and Abuse of Research into Homosexuality, LJ 7/96), yet what is unique is the author's ability to distill a vast array of data to create cogent, readable prose. Written in four parts (sexual histories, sexual biology, sexual identities, and sexual politics), the book offers readers an unbiased examination of evidence suggesting that homosexuality is a complex interplay of biological, psychological, and environmental factors and that it has existed across cultures and throughout history. Given the current level of discourse in our culture on this issue, Mondimore adds an important, and reasonable, voice to the mix, and his work deserves wide readership.