Concepts, theories, and perspectives -- Concepts of female sexual orientation / Lisa Diamond -- Gay male identities, desires, and behaviors / Jeffrey Parsons and Christian Grov -- Bisexual identities / Sari Dworkin -- Transgender identities : research and controversies / Francisco Sanchez and Eric Vilain -- Biological foundations of sexual orientation / Alexander K. Hill, Khytam Dawood, and David A. Puts -- Demographic perspectives on sexual orientation / Gary Gates -- Development over the life course -- Sexual orientation in adolescence / Margaret Rosario and Eric T. Schrimshaw -- Emergent adulthood in lesbian and gay lives / Bertram Cohler and Stuart Michaels -- Sexual orientation in middle adulthood / Andrew Hostetler -- Aging and sexual orientation : aging and sexual orientation / Arnold H. Grossman, Michael J. McCutcheon, and John A. Frank -- Domains of experience -- Sexual orientation, careers, and work / Jonathan Mohr and Ruth Fassinger -- Same-sex romantic relationships / Adam W. Fingerhut and Letitia Anne Peplau -- Sexual orientation and lesbian and bisexual women's health / Jane M. Simoni, Laramie Smith, Keren Lehavot, Karen Fredriksen-Goldsen, and Karina L. Walters -- Sexual orientation and gay men's health / Amy Herrick, Mark Friedman, and Ron Stall -- Sexual orientation and mental health / Susan Cochran and Vickie M. Mays -- Sexual orientation, family formation, and parenthood / Charlotte J. Patterson -- Communities and contextual issues -- Attitudes toward sexual orientation / Stacey Horn -- Minority stress and the health of sexual minorities / Ilan Meyer and David M. Frost -- Sexual orientation, victimization and hate crimes / Kimberly Balsam and Tonda Hughes -- Race and ethnicity among lesbian, gay and bisexual communities / Bianca Wilson and Gary Harper -- Lesbian, gay, bisexual, and transgender communities / Esther D. Rothblum.