Originally designed in the 19th Century as a way to show off knickknacks, etagere bookshelves have remained popular thanks to their breezy design that's as much a display case as it is organization. This bookcase, for example, is a contemporary twist on the classic etagere: crafted from manufactured wood shelves within an iron frame, this piece is perfect for an on-trend mixed material look in a modern farmhouse or industrial setting. And since it measures 25'' H x 35.5'' W x 12.75'' D, it's a great option for a low-profile shelf.