This bookshelf is so sleek you could put a pile of crap in it and it would look good. The Yuu Bookshelf, designed by Augusto Antonio Viola, possesses all of the modern essentials, including modularity, clear functionality, and clean materials. The bookshelf can either attach to the wall, or be used as a wall separator when conjoined. The modular system includes flower pots, book ends, and a book stand. There’s not much more I can ask for in a minimalistic bookshelf such as this one.