This book undertakes the study of management by utilizing analysis of the basic managerial functions as a framework for organizing knowledge and techniques in the field. Managing is defined here as the creation and maintenance of an internal environment in an enterprise where individuals, working together in groups, can perform efficiently and effectively towards the attainment of group goals. Managing could, then, be called "performance environment design." Essentially, managing is the art of doing, and management is the body of organized knowledge which underlies the art.

Principles of management, 1968