Learn more about Jean Piaget from this website. The site is dedicated to the study of human knowledge and development.

This is an excellent resource on the life and work of the Swiss educational psychologist Jean Piaget (1896-1980).

"The basic reason for this international attention was the unquestionable fact that Piaget was the founding father of a branch of psychology that tries to unravel the mysteries of the human mind, how it grows and how it comes to know."...

Provides details of Piaget's theory of intellectual development, used by many developmental psychologists. It contains a chart illustrating "Stages of Cognitive Development."