Abstract: This contributed text is for undergraduate or graduate courses in gay, lesbian and bisexual studies and courses on diversity issues taught in a variety of departments. The authors are experts from psychology, sociology, anthropology, education, women's studies, and law. Features: * Developmental focus provides students with a sense of continuity in understanding the life span challenges of gays, lesbians, and bisexuals. * Range of topics include perinatal factors in gender identity, issues in sexual childhood identity, perspectives on coming out, ethnic minorities, dating, relationships, families, and law. * Examples from popular culture, interviews, and life histories help students relate to and understand these issues more fully. * Lists of resources, organizations and services, as well as policy recommendations, form a valuable reference guide within the textbook.