This library, featured on BecauseWeCan, has a set of sliding bookshelves that moves to the left to reveal a hidden door. This setup can be recreated with standard bookshelves, skateboard wheels, and sliding door...
Bookcases are often used as hidden doors, but secret compartments within the shelves are more rare. Covert Furniture offers this bookcase with a concealed gun compartment that pulls out from the top. The drawer also folds down once extended to allow access to the gun...
