"Sex, Needs and Queer Culture: From Liberation to the Postgay" by Doctor David Alderson is a 324-page textbook published by ZED Books in 2016. It delves into the social science, philosophy, and political science aspects of LGBTQ+ studies, focusing on themes of liberation and the post-gay era. The book is written in English and is available in trade paperback format, making it accessible to a wide range of readers interested in understanding queer culture from a political and ideological perspective.