From Germany: Functional and Beautiful Sliding Shelves

I recently learned about these Sliding Shelves and fell in love:




As a home or office organizing tool, they're brilliant. You can move books or whatever supplies you store on the shelves closer or further from you based on when you need them. They're like file drawers, except for the wall.

From the designer's website:

A wooden board is fixed on the wall and supports a number of boxes. They can be hanged, removed, slid freely, always changing the layout of the shelves.

The back of the boxes are...