If you're looking to add invisible shelves in your home or workplace, you can either buy them on Amazon.com for $14 a piece, or you can build them yourself with a just a few simple tools.
In this 3-minute video, life-help website VideoJug shows how to install invisible shelves in an easy-to-understand, anyone-can-do-it fashion. The acting is a little goofy, but the instruction is right on.
Invisible shelves can be used to store and display books, clocks, knick-knacks and photos. They're called "invisible" because objects appear to float on the walls on which they're shelved.