Book excerpt: The Unauthorized Dan Brown Update includes information about Digital Fortress, Angels & Demons, Deception Point, The Da Vinci Code (book and movie), The Solomon Key, and subsequent novels. It's a "mini" book in the sense that it is fairly thin - 96 pages to start with, although it will grow over time. (For example, detailed chapter-by-chapter analysis of The Solomon Key will be added soon after that novel is published.) This is a "meta" book in the sense that it complements, without trying to replace, the many worthy books that are already available about The Da Vinci Code. This book is unique in that it provides a "nimble," timely report on *all* of Dan Brown's activities, including everything that is known about The Solomon Key, "The Da Vinci Code" movie, and beyond.