This is the Magic the Gathering Player's Guide for Alara Reborn that was included in the Fat Pack.
Magic the Gathering: Alara Reborn Player's Guide

Publication Date: 2009
Publisher: Wizards of the Coast
Pages: 35
Format: Paperback
Authors: Wizards of the Coast, Chris Rahn, Thomas M. Baxa, Steve Prescott, Daarken, Tom LaPille, Greg Staples, D. Alexander Gregory, Kevin Walker, Dave Guskin, Steve Argyle, Michael Komarck, Chippy, Ralph Horsley