This new edition of A Clinician's Guide to Systemic Sex Therapy integrates the latest empirical research from the field of sex therapy and demonstrates how clinicians can optimize their treatment for a wide range of clients. Grounded in the Intersystem approach, the book incorporates the multifaceted perspectives of the individual client, couple, or family. It considers every domain of assessment and treatment: biology, psychology, the intimate relationship, family-of-origin, and larger contextual factors contributing to any sexual/relational issue. This revised edition contains 13 chapters consistent with the DSM-5 definitions of sexual disorders and features new content on areas including LGBTQ+ issues, non-monogamous relationships, intersex clients, and an increased focus on issues surrounding sexual diversity. The authors of this award-winning text have set out a cutting-edge framework for clinicians looking to develop a comprehensive understanding of sexual issues, which will be an essential reference point for beginning and seasoned therapists alike.