Motivation of a Person

David McClelland is an outstanding American psychologist, author of the theory of needs and the concept of competence, and a professor at Harvard University. This book examines in detail three main types of human needs: the need for power, the need for achievement, and the need for affiliation. Each individual's motivation is based on one or another leading need. The author skillfully describes experiments in which certain motivational dispositions are provoked, and he demonstrates the universality of the method he developed with his colleagues for detecting these hidden needs. McClelland also poses the question of how motivation for high achievements can develop and does develop.