Now You See It, Now You Don't: The Amazing World of Optical Illusions

Now You See It, Now You Don't: The Amazing World of Optical Illusions


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This classic book on optical illusions explores dozens of visual riddles about distance, depth, brightness, contrast, and color. Newly designed and filled with more than eighty illustrations — plus eight full-color pages of optical illusions — Now You See It, Now You Don't lets youngsters see for themselves why they can't always believe their eyes!

Product Details

ISBN-13: 9780688161521
Publisher: HarperCollins Publishers
Publication date: 08/17/1998
Edition description: REVISED
Pages: 64
Sales rank: 994,141
Product dimensions: 8.50(w) x 9.50(h) x 0.25(d)
Lexile: 800L (what's this?)
Age Range: 8 - 12 Years

About the Author

Seymour Simon has been called “the dean of the [children’s science book] field” by the New York Times. He has written more than 300 books for young readers and has received the American Association for the Advancement of Science/Subaru Lifetime Achievement Award for his lasting contribution to children’s science literature, the Science Books & Films Key Award for Excellence in Science Books, the Empire State Award for excellence in literature for young people, and the Educational Paperback Association Jeremiah Ludington Award. He and his wife, Liz, live in Columbia County in Upstate New York. You can visit him online at, where students can post on the “Seymour Science Blog” and educators can download a free four-page teacher guide to accompany this book, putting it in context with Common Core objectives. Join the growing legion of @seymoursimon fans on Twitter!

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