The Conceal book shelf by Umbra is more or less invisible behind a stack of books. Your books will seem to float against the wall as if by magic.
Simply put the back of the book at the bottom onto the Conceal shelf and you’ll be able to put ten more on top.
Conceal can be attached to the wall easily and is made of powder-coated steel. The book shelf is available in two different sizes - for big and small books.