A landmark volume in the field, Bisexuality presents a state-of-the-art glimpse of what is known and what remains to be known about bisexuality. Editor Beth A. Firestein gathers together an impressive group of researchers, activists, educators, theorists, and clinicians to offer insight into this understudied sexual orientation. Written in a scholarly but accessible style, this noteworthy collection of essays provides a focused, comprehensive introduction to research, theory, and practical clinical knowledge about bisexuality. The contributors agree that, given recognition and validity, the study of bisexuality can extend what we know about sexual orientation and sexual identity as well as shed light on previously unexplored aspects of sexuality. This insightful volume explicates the emergence of bisexuality as a phenomenon requiring a paradigm shift in sexual-orientation studies and discusses the implications of this shift. Bisexuality makes accurate, high-quality information about the subject available to professionals and students in lesbian/gay studies, gender studies, sociology, family studies, and human sexuality. The book also brings current clinical perspectives together in a user-friendly volume for practitioners in social work and clinical/counseling psychology.