Changing attitudes towards change and social inequality at different times and places. The concept "development" in the natural sciences and humanities. Key concepts in development theory: capitalism, socialism, colonialism, neocolonialism. Changing theories of development: linear states theory, neo-classical structural change model, modernisation theory, dependency theory and postmodernist challenges. Contemporary debates regarding the utilisation of scientific knowledge: predicting and inducing change, ethical considerations and multidisciplinary cooperation in development. Relationship between theory and practice and between community development and related fields of specialisation.