Changes in biological processes, relationships, and community interactions influence the emergence of sexuality in all young people. The process is more complex and difficult for lesbian, gay and bisexual (LGB) teenagers. Fortunately, the cultural changes that have allowed LGB youths to become more open about themselves at earlier ages have also allowed social and behavioral scientists the opportunity to study them. The essays in this volume explore the psychological dimensions of LGB identities from puberty to adulthood. The essays focus on three general areas: theoretical frameworks that are important in understanding the development of sexual orientation in adolescence, challenges faced by LGB youth, and issues related to interventions and services for LGB youths in community settings. This volume presents authoritative, research-based reviews of this ever-increasing area of study and social concern.