
by Martin Gardner · Sterling Juvenile · tapa blanda · ISBN 9781402733383

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«Optical Illusion Play Pack» is a children's book of optical illusions by Martin Gardner, published by Sterling Juvenile in paperback, 64 pages, in English.
The book invites children to experiment with optical illusions rather than just look at them. It includes die-cut cards that enhance each effect and a vinyl bag to store them; with these, they can check whether two tables of different shapes are the same size by placing a checked tablecloth on them, or spin a color disc until the colors seem to disappear.
Published in 2008, with illustrations by Gilbert Ford. Includes more than forty optical illusion pieces.
It is aimed at children and young people who enjoy puzzles and activity books.

Martin Gardner was an American writer on popular mathematics and popular science. His interests also encompassed magic, scientific skepticism, micromagic, philosophy, religion, and literature – especially the writings of Lewis Carroll, L. Frank Baum, and G. K. Chesterton. He was a leading authority on Lewis Carroll; The Annotated Alice, which incorporated the text of Carroll's two Alice books, was his most successful work and sold over a million copies. He had a lifelong interest in magic and illusion and in 1999, MAGIC magazine named him as one of the "100 Most Influential Magicians of the Twentieth Century". He was considered the doyen of American puzzlers. He was a prolific and versatile author, publishing more than 100 books.
