You've undoubtedly been to the website and seen and read the manifesto. The book is an expansion of the 95 or so 'commandments' targeted towards corporate America and how they perceive their customers (and the public as whole). I wasn't disappointed by the book, however, I expected the book to further expand on the ideas that are posted on their website. However, what you will get is a collection of anecdotes and examples that support, rather than extend, the principles outlined in the ClueTrain Manifesto. Regardless, this book is a valuable tool, make that a bible, that every corporate slave should read and begin to incorporate into his or her views towards the people he or she is dealing with on a daily basis. Also, this is a necessary read for those in the marketing or advertising fields as it will remind them of what exactly they're here to do: to communicate more effectively. Better yet, to be able to carry a conversation for longer than five minutes without a cosmopolitan in one hand. Read the book and be in touch with how business should be doing business.