Social work knowledge and theory may include:

human growth and behaviour
family dynamics
communication theory
community development theory
organizational theory
theories of the state
theories of oppression and empowerment
social treatment interventions
social action methods
social research methods, and
policy analysis

There are 23 universities across Canada that provide professional education for social workers. Nearly 4,000 students enrol annually in social work education, and 370 faculty are employed to teach them.

Social worker communicating troubling situation, Photographer: Walter Curtin, National Archives Neg. no. PA137107.