The perfect combination of clinical experience and academic expertise, Westheimer and Lopater's "Human Sexuality" goes beyond traditional introductory sexuality resources by delivering all the classic content in a unique psychosocial context. Dr. Ruth's renowned experience as sex therapist and her appealing, reassuring nature make this an invaluable lifelong reference as well as an engaging textbook. New and revised content reflects important developments in topics such as: gender, sexual identity, self-concept, and the psychosocial environment; sexual arousal and responsiveness; fertility and infertility; contraception; and, treatment of sexually transmitted diseases and AIDS.Westheimer and Lopater's "Human Sexuality, Second Edition" now includes bonus online faculty support and tutoring services powered by Smarthinking[trademark]. Instructors and students can log on and post questions, which will be answered within 24 hours by an experienced human sexuality educator. Instructors can get advice on topics such as lesson plans, how to present difficult topics, test questions, learning activities and more. Students can get personal tutoring and instruction to help them grasp difficult concepts. Additional free instructor and student ancillaries are available.