Artiss Bookshelf Corner Shelf 3 Tiers - ZANE WhiteThere are ladder shelves. Then there is our Artiss Ladder Shelf. Not just a lean to but capable of standing on its own with four sturdy legs. Three shelves, in increasing size from top to bottom, offer ample space for displays and collectibles in an aesthetic and functional design. The wide base makes for a very stable structure, but wall screws are also included so that the shelf can be mounted to the wall for better stability and added safety.