David H. Barlow & John P. Wincze 
Enhancing Sexuality [PDF ebook] 
A Problem-Solving Approach

Designed to help individuals seeking to improve sexual relations, including those who may be experiencing specific sexual dysfunction. Using a cognitive-behavioral approach, this book addresses sexuality as a part of human functioning that can be associated with joy and good interpersonal relationships, as well as stress and problematic interpersonal relationships. It allows therapist to help clients take the lead in placing their own functioning and satisfaction within this continuum. The Therapist Guide accompanies the Client Workbook, which is written in a way that is both technically correct and understandable, and provides information about sex, information to help target the sources of sexual problems and to find ways for solving them, and a demonstration of ways to avoid certain obstacles to progress.