This book stands out because it goes beyond the standard material and presentation in several ways. The first chapter normalizes sexuality in the academic curriculum and demonstrates that many aspects of human sexuality are amenable to rational inquiry and critical analysis. This chapter lays down a model for thinking critically about the complex issues raised in the study of human sexuality. Biological issues are addressed next (eg, evolution, development, anatomy, and physiology), before moving on to biopsychosocial issues (eg, gender, attraction and arousal, relationships, sexuality across the lifespan). The origins of sexual orientations are explored in the chapter on sexual attraction and arousal, allowing a separate chapter, “Sexual Minorities,” to focus not on what causes people to become gay, lesbian, bisexual, or transgendered but rather on the personal and social significance of belonging to such a group. The discussion of intersexuality, which also appears in this chapter, concisely and poignantly frames the social and ethical issues that come into play in the current debate regarding medical management of disorders of sexual differentiation.