I have to strongly disagree with another reviewer who said this was not a good book for professionals. I have used this book professionally for several years and find it very, very valuable. And I have encountered a number of professionals who fail to look at corporate value in a disciplined enough way because they have not learned some of the basic lessons in this book.
Chapters 2, 3, & 4 alone are a thought-provoking essay on how corporations create shareholder value through good planning and execution, or how they destroy it by not paying attention to the basics. Any corporate finance professional, corporate strategist or banker thinking of undertaking (or funding) a corporate acquisition should read this part of the book. Plus, any non-finance professional who wonders what his bankers and corporate finance department are up to should be familiar with this thinking as well.
Much of the rest of the book is a how-to guide that describes how to value companies, and how various moves (such as restructuring, mergers or international expansion) can add or subtract corporate value. Granted, it is at a pretty high level, and if you are actually trying to build a complex valuation model you still have to think through a lot of the detail on your own. But it is inspirational in encouraging the professional to become more serious about valuation, and describes enough of the framework to serve as a very good guide to getting very far down the path. Those who need to get more detailed can find more specialist texts to take them to the next level of complexity.