This book questions several so-called practicing experts on information design. Although some responses are sensible, most of the book's entries fail to stand by solid and structured ideas. Instead, most of the authors in this book ramble on about some rather horrible theories, while trying to prevent any criticism by including in their answers a lot of ifs and buts (Brenda Dervin: Chaos, Order, and Sense-Making.) While almost the entire book was a waste of time to read, the section by Romedi Passini (Sign-Posting Information Design) was enough to keep me from tossing the book. Read that section if any.