Paperback reprints were made of several of his books. We had a copy of "Wildness" in the family and the images were horrible compared to the big original hardback, which I still have. But as I recall,
there was even a restrike of the big edition which is noticably inferior to the first edition. The problem with the original editions of some of these books is that the varnish on the images will have
yellowed with age, but that's one of the expensive additions which made them so impressive in the
first place. The original edition of "Glen Canyon" almost seemed like a slide show.