Here 2 different color bookcases have been stacked on top of each other. Great idea!!! Get creative in those small spaces with all the books you have collected that you just can't get rid of. If you're like me you never know when you might need to open one of them. So appease that spouse (who you have been arguing with to keep them) and make them interesting and presentable.
Photos taken at http://hickorychair.com/