Group therapy involves two or more clients interacting with each other and a therapist to address psychological issues. It has roots in the early 1900s for treating tuberculosis patients, and was later used for soldiers in WWII and those seeking personal growth. The main goals are to help clients identify maladaptive behaviors, address emotional difficulties through feedback, and provide a supportive environment. Types include psychoeducational, counseling, and psychotherapy groups. Key therapeutic factors include universality, altruism, and developing social skills. Group composition and size, length of sessions, and the therapist's role are important considerations. Techniques incorporate cognitive, behavioral, role playing, and other creative approaches. Benefits include realizing one is not alone and gaining support and social skills,