This document discusses the knowledge base of group work in social work. It identifies three main components: theoretical knowledge, factual knowledge, and practice knowledge. Theoretical knowledge includes theories from other disciplines like psychology and sociology that help understand human and group behavior. It also includes theories underlying different group work approaches. Factual knowledge involves verifiable data and research findings. Practice knowledge is how theoretical and factual knowledge can be applied in practice situations, and involves competence, skills, and interventions.