The evidence is clear. Managers serve their companies well when they plan, organize, lead, and control. So we've organized this textbook based on these functions of management, as shown in Exhibit 1.1. The major sections within each chapter of this textbook are numbered using a single digit: 1, 2, 3, and so on. The subsections are consecutively numbered, beginning with the major section number. For example, “2.1” indicates the first subsection under the second major section. This numbering system should help you easily see the relationships among topics and follow the topic sequence. It will also help your instructor refer to specific topics during class discussion.