Reference #407: Organizational Culture and Leadership
You can define culture as the accumulated shared learning used by a group to solve problems of external adaptation and internal integration — how the group handles change and interacts with the rest of the world, and how the group interacts with itself. This learning is a system of beliefs, values, and behavioural norms that come to be taken for granted.
This approach contrasts with defining culture by listing every facet of a group that is shaped by and comprises culture.
Schein. Organizational Culture and Leadership, 2017. (6)