Great introduction, should be called "Surviving Six Sigma"

Although this is a very good introduction to Six Sigma, it is clearly written for somebody in middle management whose organization has decided to adopt Six Sigma. It spends a considerable amount of time comforting the reader that his/her job is not in danger because of Six Sigma and that (s)he should embrace it and take advantage of it.

This book is a great first introduction to Six Sigma and will serve as an excellent springboard into further education and training.

Excellent system for process management

Six sigma is used in major corporations for process management. It is effective because the philosophy is supported with metrics. I can see why Jack Welch and Larry Bossidy fell in love with this system. I believe this book should be read in tandem with Optimal Thinking: How To Be Your Best Self to optimize individual and organizational efficiency and effectiveness. When thinking in organizations is consistently optimized, there is minimal resistance to six sigma.

Six Sigma Overview

If you are looking for a book to take you from no knowledge of Six Sigma to a very elementary level of knowledge, this could be useful. I found myself feeling like I was reading a company brochure for Six Sigma that was too long. The book falls into a middle ground of not having enough information to be useful in implementing Six Sigma yet might have too much for the average person.
I originally thought this would be a great book to give to people that congratulate me on being a Six Sigma Black Belt, that they once took Karate but never got that far, to understand Six Sigma. After thinking about the level of knowledge of many people regarding basic statistics I think as simple as this book is it may be over the general person's comfort level. I'm afraid it might cause people to shut down from feeling overwhelmed. If they have basic statistical skills, they should have no problem understanding this though.
Maybe the book is perfect for people being asked to participate in Six Sigma initiatives or working with a company that is implementing Six Sigma. I would be uncomfortable giving this to somebody with no Six Sigma knowledge and not being available to discuss it with them, hold their hand through it. If you have a real interest in Six Sigma, pick up one of the "heavier" books, including The Six Sigma Way by the same author. You can skim through it and get this same information. If you want more information it will be there, no need to buy another book.