OPTRICKS (Optical Illusions) by Wentzell & Holland 1973
$9.95Price
Optricks: A book of optical illusions. By Melinda Wentzell and D.K. Holland, Troubador Pr, 1973. (ISBN: 0912300345)
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.