Katie from On the Banks of Squaw Creek came up with this and I found it via Ohdeedoh. Read more about how she did it here.
What a great way to sneak in some extra book storage! We are in desperate need of a little more shelf space, so I think this might be a good solution for us. I wonder if I could attach them to the side of our playroom expedit....
While searching through her blog, I discovered another fun book storage post about using crates to store her son's picture books. You can see them here.
Thanks, again, Katie for letting me share your idea!