This is a real bookshelf that functions as a door to hide a secret room, closet, wine room, gun closet and many more. The door appears as a bookcase. But you just push it and it will reveal a hidden room or space. This door is a great way to expand your storage and at the same time protect your valuables and family. For more information, go to hiddendoors.net.

Woodfold Custom Bookcase Doors:

This bookcase is perfect for areas with limited space or where privacy is important. This masterfully crafted custom door brings double-duty functionality to any home. You can use this door to hide a closet, a wall safe, a wine cellar, a private retreat or a panic room. The unit features 2 fixed shelves located at the bottom and center, 4 adjustable shelves for quick customization, steel hardware hinges designed to ensure a smooth, strong and lasting operation and hardwood veneer options. For more details, go to woodfold.com.

Mahogany Secretary Desk & Bookcase, Secret Drawers:

This Georgian Chippendale bookcase and secretary desk features exceptional workmanship, elegant and refined lines. The top features well proportioned finial and pediment while serpentine curves adorned the drawer fronts. All four feet have claw and carved ball design. Inside are secret cubicles and drawers. Shelves with grooves are found on the upper bookcase section. The whole unit looks elegant with its gleaming mahogany finish. The dimensions are 38 inches in width by 21 inches in depth by 6 feet and 8 inches in height. The item retails at harpgallery.com for $1,375.00.

Kathy Ireland Tahoe Wood Bookcase with Doors:

This simple storage is designed for both home and office use. The modern design fits any contemporary interior décor. It is constructed of American red oak and finished with warm medium wood. It comes with 2 adjustable shelves. The dimensions are 36 inches in width by 12.8 inches in depth by 72 inches in height. This unit retails at bookcasesgalore.com for $499.00, 33 percent or $250.01 less than the list price of $749.99.

Linea Hadfield 5-Tier Leaning Shelf Wood Bookcase:   

This 5-tiered shelf has an open design that works well in odd-shaped or corner areas. This unit allows you to maximize your space by expanding the usable space in your home. It is made of durable MDF and comes in black or white finishes. It has a load capacity of 10 pounds and comes with the necessary hardware, ready to be installed. The unit measures 18 inches wide by 13.5 inches deep by 67 inches high. It sells at bookcasesgalore.com at a reduced price of $99.98.

tX2 Project Wall by Coalesse:

This adjustable storage space features metal shelves, veneer panels and base and angled display shelves. It has a standard depth of 15 inches, height options of 68 inches and 82 inches and weight options of 19 inches, 25 inches and 31 inches. For more information, visit steelcase.com.

Secret bookcase doors will benefit any home library. Many retailers offer these doors under various brand names at affordable prices.