Start with high-confidence group therapy books, then narrow by subgenre or adjacent topics.
Trauma Informed Guilt Reduction Therapy
Sonya Norman, Carolyn Allard
AIDS Trauma and Support Group Therapy
Martha A. Gabriel
The Theory and Practice of Group Psychotherapy
Irvin D. Yalom, Molyn Leszcz
Group Dynamics in Occupational Therapy
Marilyn B. Cole
Creative DBT Activities Using Music
Deborah Spiegel
