Customization doesn’t come any more complete than this, but before you buy you had better be sure you know exactly what your favorite books are … and will remain.

Jane Dandy is an Etsy builder and seller based San Francisco who takes special orders for this unique kind of fill-in-the-blank furniture, a bookcase or potential side table when all your reading material is shelved.

Each rectangle is composed of a series of boards, sliced, slotted and stacked just right so that you can slip your series of hand-selected books into the spaces and complete the puzzle. The customer provides the dimensions and she builds and ships the results.