A beautiful book, subtitled The Art of Robert A. Maguire. Maguire was one of the great GGA cover artists, and this over-sized book gives you a plethora of wonderful covers to contemplate. Besides the informative text, there are some shots of the models Maguire used, and these are placed next to the covers derived from them. Some rough sketches are included, too. If you already have the McGinnis art books (and maybe even if you don't), you'll want to add this one to your collection. It's a book you can peruse again and again.
The cover that really nails me is the one for The Revolt of Mamie Stover, a book that in 1957 or so defined hot stuff for some of us youth in a small Central Texas town. I've never forgotten that one.