“Mastering Competencies in Family Therapy: A Practical Approach to Theories and Clinical Case Documentation” by Diane Gehart is a revised edition textbook published by Cengage Learning. The book covers a comprehensive range of subjects including Internal Medicine, Nursing, Counseling, and Teaching Methods. With 672 pages, this trade paperback offers insights into family therapy theories and practical approaches for clinical case documentation. Written in English, this textbook is a valuable resource for students and professionals in the field of family therapy.