OPTRICKS by Melinda Wentzell; D.K. Holland 1973
$10.00Price
Optricks: A book of optical illusions. Melinda Wentzell; D.K. Holland, Troubador Pr, 1973
Introduces and describes optical tricks ranging from well known optical illusions.
Mild cover soil and corner crease. 8-1/2 x 8-1/2 with 39 pages.