The first of Marvel's cool paperback line, printed by the fine folks at Pocket Books.
As I said many months ago when talking about a Hulk Pocket Book, these editions were the only comics that ever showed up at the book fairs they had at my elementary school every so often. I assume the page count and the Pocket Books logo gave these an air of respectability that a 40 cent floppy didn't have.
This book reprints the first six, groundbreaking issues of The Amazing Spider-Man, by (of course) Stan Lee and Steve Ditko, plus Amazing Fantasy #15.
160 whopping pages!