Tricky optical illusion puzzles

Challenges the reader to solve a series of optical illusion puzzles. Solutions are provided.

Sterling
2001
9780806975672
book

Holdings

hidmidmiidnidwidlocation_codelocationbarcodecallnumdeweycreatedupdated
48188942915632286209685309760WARE436WARE200674AC 793.73 SLO793.7315774597521709567815
83742445701932328209685309760PIPR387PIPR33769152.14 SLO152.1415798937721736518457
202293856021792457209685309760GROL244GROL017177793.73 SLO793.7315825759371742569409