Social learning allows the spread of new knowledge and skills, and is the basis for traditions in a wide range of animal species. These traditions may, in turn, form the basis of culture. Although often used synonymously with social learning, imitation denotes a distinctive social learning mechanism, which many researchers hypothesize allows particularly high‐fidelity transmission of information. This entry examines a range of social learning mechanisms that have been distinguished and reviews how they have been investigated. Current debates on the definition and identification of imitation and other forms of social learning are outlined, addressing differences in their usage across different animal species and impacts on the spread of traditions and culture.