Creating this DIY bookshelf in an old door is a great way to utilize space and repurpose materials. Plus, you get a secret ...

This makes it the perfect addition to almost any space. Despite this bookcase's many features, it does not come with doors.

"So I decided to 3D print a door to the Terry Pratchett's Ankh-Morpork and place it into the shelf where I have his books." ...