TY  - BOOK
AU  - Baum,Arline
AU  - Baum,Joseph
TI  - OPT: an illusionary tale 
T2  - Picture Puffin
SN  - 0140505733
U1  - [E] 
PY  - 1989///
CY  - New York
PB  - Puffin
KW  - Optical illusions
KW  - Fiction
KW  - sears
N1  - Booklist; The Science Teacher (N.S.T.A.); 3.5; Follett Library Resources; 3-6; Follett Library Resources; 3-6
N2  - A magical tale of optical illusions, in which objects seem to shift color and size while images appear and disappear
ER  -