00714cam a2200241 4500 241564397 TxAuBib 20150101120000.0 931104s1994||||||||||||||||||||||||eng|u 93043911 9780806904313 0806904313 DLC DLC DLC TxAuBib Smith, Katherine Joyce. Astounding optical illusions / Katherine Joyce. New York : Sterling Pub. Co., 1994. 96 p. : ill. ; 22 cm. Includes index. 20150101. Optical illusions Juvenile literature. Optical illusions. Perception.