I agree with all of the other positive reviews. I too have read many a book on Organizational Development and this is by far the best. What sets it out from the rest is that there is constant reference to actual case studies, so you can see the theories in practice. It also features very clear models and diagrams for the visual thinker. My only disappointment is that I don't own this book - though it is worth the investment.
This book is essential for anyone that is studying about business analysis and management of change. Everything is thoroughly explained and all the steps are shown by each different chapter. A really great book thoroughly recommend it. I bought it because I was studying change management, and it was so good.