Transitions: Making Sense of Life's Changes: Strategies for Coping with the Difficult, Painful, and Confusing Times in Your Life
by William Bridges

From the back cover: First published in 1980, Transitions was the first book to explore the underlying and universal pattern of transition. Recently named one of the fifty most important self-help books of all time, Transitions remains the essential guide for coping with the inevitable changes in life.