Who is Henry Mintzberg and when did he write his theory?

Henry Mintzberg is a prominent Canadian academic and author, widely recognized for his work in management and organizational theory. He is best known for his 1973 book, "The Nature of Managerial Work," where he introduced a framework outlining the roles and functions of managers. Mintzberg's theories emphasize the complexity of managerial roles and the importance of context in management practices. His contributions have significantly influenced the field of management education and practice.