Organizational psychology began as an offshoot and integration of industrial psychology and social psychology and, as such, early scholars in the fields maintained primary loyalty to their basic discipline. Organizational behavior departments warehoused administratively in business schools, but in general they maintained a separate identity from the profession of management. Today we see major changes in this orientation as organizational behavioral departments have become more integrated units within professional business schools. The encyclopaedia of organizational psychology stands on and should be useful to teachers, managers and consultants for the breadth of viewpoints and the wealth of data that it provides.