content: One of the strangest books I have seen and a very disturbing trend. The authors sold corporate sponsorship of chapters and let each company write an chapter-length ad. Its bad enough to get ads at movie theaters and on rental videos, but in a technical book? It's one thing to have ads in things where the cost is largely underwritten by the ads (like magazines), but its quite another to find 25% of a full-priced book filled with ads. Buying this book will only help to standardize this practice. Send the publishing industry a message by refusing to buy this book.As many other readers point out, this book is aimed at managers who could buy the products sold by the companies who bought chapter ads.