Peter Drucker's work has been considered the foremost management thought for most of the twentieth century and into the twenty-first. Here Drucker and Maciariello provide executives, managers, and knowledge workers with a guide to effective action - the central theme of Drucker's work. This journal will provide an interactive format where managers and executives can record their thoughts on the ideas from The Effective Executive. The journal will teach leaders how to become more effective and how to lead according to the five main pillars of Drucker's philosophy on effective leaders.