NEW - 2 books - How to Make Optical Illusion Tricks & Toys, and The World’s Best Optical Illusions and NEW Optical Illusion playing cards. Books are both paperback. Size on both books are: 5.25” x 8.25” each. How to Make . . book has 128 pages. The World’s Best . . . book has 96 pages. The playing cards have a collection of 54 eye-catching optical illusions and are still in shrink wrap. From a smoke free and pet free home.