Another Dimension: You Have to See It to Believe It!

There are 87, 3-D illusion pictures in this book -- all hidden within another visual dimension. After concentrating for a while on the initial image, the hidden picture begins to appear out of nowhere. Lots of fun.

Publisher ‏ : ‎ Twenty First Century Books; Corners Dog Earred edition (January 1, 1994)
Language ‏ : ‎ English
Paperback ‏ : ‎ 94 pages
ISBN-10 ‏ : ‎ 0964095408
ISBN-13 ‏ : ‎ 978-0964095403