The document provides an overview of six passages or transitions that leaders go through in their careers according to the authors' Leadership Pipeline model. Passage One involves transitioning from managing just oneself to managing others. It requires learning how to allocate time to managing others rather than just doing individual work. Values must shift to prioritizing managerial work over individual contributions. Passage Two involves transitioning from managing others to managing managers. Key skills include selecting and developing first-line managers. Managers must value developing others over individual work. The document then briefly summarizes Passages Three through Five which involve transitions to functional manager, business manager, and group manager respectively. Each passage requires new skills, time allocation, and values.