Institute of Database Developers
 

Illusions
IODD Members at Work
Count the Black Dots
How many legs does this elephant have?
The Shrinking Haze
Man or ...Woman?
Rabbit or ...Duck?
Say the Color not the Word.
Woman in Vanity or ...Skull
Face of Native American or ...Eskimo coming home
Old Woman or ... Young Girl
 
Sent by Karl Zercoe September, 2002