There are things You don't want roommates, parents, and especially authorities to snoop around in. If you hide things in obscure places, you will forget where they are. This book has hundreds of excellent ideas and the drawings practically do the work for you. Now You can be confident that everything You want to keep private will be kept private!
The suggestions are very good for the smaller things. How to hide money. How to hide jewelry. Then it grows to larger and larger items. Eventually it got into hiding a closet, hiding a room, hiding a house, hiding a corporation.
Buy this book. You will not regret it.