Complete with a book that opens the hidden door as you pull it away from the shelf, this bookcase actually is door to a secret room. Bob of I Like To Make Stuff shows how he built a hidden door camouflaged as a bookcase. While this is not a one day project this hidden door is lot easier to make than you might suspect. As you’ll see in the video careful measurements are critical to making sure it fits the space correctly. I liked Bob’s attention to detail and his suggestion for making sure the back of the bookcase/door could easily be popped out in case of an emergency. Go ahead and watch the video now.