For a classy understated shelf unit we wholeheartedly recommend the stunning Nico Open Back Bookcase which is available either in a Creme or Elephant Grey finish and would look great symmetrically hung as a pair. Bookshelves don't have to be stuffed to the brim with novels and can look great if you use a pair of bookends on one shelf, and dedicate the rest of the piece to treasured souvenirs and knick-knacks.