The hardcover book written by Tara Bennett and Paul Terry, is an authorized version the Observer September's notebook, and all his observations regarding the Bishop family and is currently available for order on Amazon for only $28.41 with free shipping!
The book starts off with a glyph code legend, which is helpful for translating various clues in the book.
The rest of the book is stylized like an actual notebook, with photos and articles faux-taped or faux-paper-clipped into the book, but there are also plenty of real notes and other items actually glued into the book.
Several of the sections contain "top secret" envelopes or folders, containing classified letters, posters, etc.
We'll have a full review coming soon!
For even more screenshots, check out our pre-order announcement.