apmunoz:

This deconstructed book shelf gives each book or two, it’s own plywood box. Designed by the Dutch interior design and manufacturing team of Sloom and Slordig based in Amsterdam.

You can pile these at will creating a pretty visually stunning shelf/installation. Perfect for odd shaped spaces I’d imagine. 

A variant on the Pile Cab concept, the Extended version links 4-5 book boxes together for nice leaning potential.