This book is a really good reference tool for any organization change professional. It offers solid background on the history of organization change, an overview of many of the principle change models, and an open discussion on what works (and doesn't work) when leading organization change. I thought many of his examples were helpful and clearly written. He returns to specific case studies frequently to tie parts of the book together through organizational stories. I also appreciate that the newer addition devotes some important time to the differences regarding organization change in nonprofits, hospitals, and government organizations (compared to for-profit businesses). I know this books will be on my reference shelf and I plan to return to it frequently.