Professor Piaget wrote these comments after reading in manuscript Chapter 2 and excerpts from Chapter 6 of Vygotsky’s Thought and Language. His comments were translated from the French by Dr. Anne Parsons; the translation was revised and edited by E. Hanfmann and G. Vakar.

First chapter translated by Margaret Cook, 1955, Routledge and Kegan Paul.

A series of lectures delivered by Piaget at Columbia University, Published by Columbia University Press, translated by Eleanor Duckworth.

Some free full text books by Piaget.

Maintained by the Institute of Psychology and Education, Neuchâtel University. History of "Young Friends of Nature Club" and Piaget's membership. Documents and useful links, including research material(French).

Established in 1970, has an international, interdisciplinary membership of scholars, teachers and researchers interested in exploring the nature of the developmental construction of human knowledge.

Personal life, career history, theories, research methods, influences, major works, commentaries and critiques.

Collection of videos.