Optical Illusion Flip-Book: Astounding Optical Illusions/Amazing Optical Tricks

by Katherine Joyce and Gyles Brandreth

Book Overview

Don't believe what you see because you're about to encounter all sorts of things that aren't quite what they seem. This collection of incredible optical illusions may look like just one book, but it's really two! When you reach the end of the first one, you really aren't done--flip it over and start again with yet another book of challenging puzzles. Between the covers you'll find amazing tricks for the eye as well as for the mind. Behold gray spots...

• Format: Paperback
• Language: English
• ISBN: 0806966890
• ISBN13: 9780806966892
• Release Date: December 2001
• Publisher: Sterling Publishing (NY)
• Length: 144 Pages
• Weight: 0.80 lbs.
• Dimensions: 0.4" x 5.7" x 8.2"
• Age Range: 9 to 12 years
• Grade Range: Grades 4 to 7