It seems very strange that Santelmo adds to an otherwise useful collector's guide a whole bunch of material taken from John Michlig's book, GI JOE: THE COMPLETE STORY OF AMERICA'S FAVORITE MAN OF ACTION. Why not do inexpensive updates to the collector information without all the poorly written "history" at the beginning? 592 pages? Under half of those pages are useful.The collector book by Derryl DePriest is much better, leaner book for collector's, and the Michlig book is a better book for the history of the product.