The Umbra Conceal Floating Bookshelf is a clever (and invisible!) way to add some literary flair to your walls, making them appear to stick there with no support.

Once you've mounted the shelf to a wall (all you need to provide is a screwdriver), you insert a hardcover's back cover edge into the little hooks underneath, then close the book over the panel to conceal it from sight. Then, just stack a few more books on top of that. Easy peasy.

It comes in a handful of variations:

• Small ($13) — Supports up to 15lb of small- and medium-sized books; maximum stack height 8".
• Large ($15) — Supports up to 15lb of medium- and large-sized books; maximum stack height 8".
• Vertical ($16) — Supports one book vertically, up to 5lb and 1"–1½" thick.
• Double ($18) — Supports up to 30lb total (15lb on each side) of books; maximum stack height 8".