
around the time that super mario world was released, the guys at nintendo power had made a catalog and history book of super mario. included was a player's guide to super mario world, full of tips and hints.
the book was chock-full with 163 pages. it's a pretty rare find on ebay too
you can download the book in adobe acrobat format HERE
http://www.retromags.com/forums/Nintendo-Players-Guide-file835.html