"Another thing that is a bad problem is if you're flying toward space and the parts start to fall off your space car in the wrong order. If that happens, it means you won't go to space today, or maybe ever."—A rocket explained with simple words. from XKCD
The upcoming 2013 April 18 Space Exploration Signature Auction by Heritage Auctions brought us these fine document covers. Manuals, guidebooks, press kits, reports, brochures - all with cool artworks and typography.