"The authors of the 6th edition of The Theory and Practice of Group Psychotherapy do an excellent job of presenting the art and science of leading psychotherapy groups. The material is suitable for mental health professionals across disciplines who want to build their knowledge and expertise for leading psychotherapy groups. This is an essential ressource for learning and enhancing group leadership skills for all types of groups."

- NINA W. BROWN, professor and eminent scholar, Old Dominion University

"Once again, Yalon and Leszcz have hit it out of the park. The breadth and depth of the research covered is truly impressive. However, it's the remarkably engaging writing style that seamlessly weaves these empirically informed group psychotherapy principles within an interpersonal framework that makes this book a one-of-a-kind classic. The instructive and compelling clinical examples support beginning therapists, while the contemporary group interventions invite the experienced group leader into new territory."

- GARY BURLINGAME, professor and chair of psychology, Brigham Young University

"Reading this eagerly awaited 6th edition of what is truly a classic in the field is like returning home after a time away: the comforting feeling of revisiting familiar tried-and-true notions intermingled with the excitement of new discoveries and development in the field. This volume, like its predecessors, speaks so clearly to the group therapist, novice, and expert alike, in experience-near, clinician-friendly language, making the group experience come alive in the mind. It represents the state of the art of group therapy today."

- LES R. GREENE, distinguished life fellow, American Group Psychotherapy Association