The Theory and Practice of Group Psychotherapy by Irvin D. Yalom and Molyn Leszcz 5th is a comprehensive textbook on psychology, specifically focusing on group psychotherapy. Published by Basic Books in 2005, this revised edition is geared towards advanced levels of education and features 832 pages of valuable insights on the subject. With a focus on practical applications and theoretical foundations, this hardcover book delves into the complexities of group psychotherapy, making it a valuable resource for professionals in the field.