The document discusses the history and definitions of social group work. It describes how Joseph Pratt in 1905 used group therapy with tuberculosis patients to provide inspiration, support, and encouragement. It then discusses definitions of social group work from various scholars that describe it as a method to help groups achieve goals and enhance social functioning through face-to-face interactions. The rationale and basic assumptions of social group work are also summarized, which include the ideas that groups can effect individual change and offer a sense of belonging through shared experiences and mutual aid.