There's no cooler way to hide a room than the secret bookcase doors you see in mystery novels and Batman. Making one yourself ...

Because of her apartment's shape, Nainzadeh's visitors don't always realize there's a secret room just beyond the closet. “If I’m planning on getting a new place, I definitely would want to ...

You can build shelves just ... the outside lines and the walls, floor and ceiling, and that the lines are level and plumb.