This classic book allows readers to explore dozens of visual riddles, perform amazing optical experiments, and learn how artists use optical illusions to make their work more life-like--or create original worlds. Illustrations, many in color.
^Simon, Seymour (2014). Now You See It, Now You Don't : The Amazing World of Optical Illusions, HarperCollins Publications. BiggerBooks. ISBN 9780688161521 (revised Nov 2023)
^ (2013). Now You See It, Now You Don't : The Amazing World of Optical IllusionsECampus. ISBN 9780688161521 (revised Jul 2016)