Install a bookcase
A bookcase is a useful feature to add to any room.
Every house needs a decent bookcase. If you have a large bookcase and not quite enough books to fill it, try laying some down and stacking them on top of one another - or break up the books with bookends and place a photo frame or objects in-between to showcase your favourite things.
Making your own bookcase can be a really satisfying DIY project. It takes little skill and can add real value to a room. Talk to a staff member at Mitre 10 and discuss the best material to create your shelving out of.