by Daniel Berg (Author) This 24 page 8 x 10" full softcover black and white book is packed 3D illustrations and photographs. Includes easy to follow instructions and a complete material list. Every family can use a safe room. A place in the home to retreat to in an emergency. Wouldn't it be great if the kids had a secret place to hide during a home invasion or burglary. Now you can utilize this attractive built in designed book cases to act as a hidden door into any area. These doors can be built by anyone with basic handy man skills. We have worked out all of the tricks that allow the bookcase to swing open yet still look like a custom built in cabinet when closed.