"Hidden Pictures" by Linda Bolton is a 1993 hardcover book published by Penguin Publishing Group. This is a book of art illusions and puzzles that will appeal to people of all ages. It makes a nice conversation book as you flip through the centuries old art to modern day works. The book contains 57 pages of art and puzzles and includes a reflective page that is used to solve some of the illusions (see photos) There are also a couple of do it yourself projects to create your own Hidden Pictures From smoke free home