This book includes descriptions for 114 First Editions/150 colored photographs/Identification point/Book Grading/Pricing sources/Reprinted Publications & Collector Series Sections.
 
Arnold, Jeffrey: Complete guide to Zane Grey first editions, including photographs of original editions.  Paperback, spiral bound: 200 pages, illustrations. 5.5x8.5"  Copyright 2007 / revised 2017