TY  - BOOK
AU  - Joyce,Katherine
TI  - Astounding optical illusions
SN  - 0806904313
AV  - QP495 .J68 1994
U1  - 152.14/8 22
PY  - 1994///
CY  - New York
PB  - Sterling Pub. Co.
KW  - Optical illusions
KW  - Juvenile literature
KW  - Perception
N1  - Includes index
N2  - Presents a collection of fantastic optical illusions including designs, hidden pictures, shadow illusions, and magic
ER  -