This book was first published in 1970.

This unusual volume presents an overview of Jean Piaget's work in psychology--from his earliest writings to posthumous publications. It also contains a glossary of the essential explanatory concepts found in this work. The focus is on Piaget's psychological studies and on the underlying epistemological theses. The book may be consulted in various ways depending on whether one is looking for an introduction to Piaget's theory, details about a particular concept, a survey of his body of work, or a historical perspective. Readers who are relatively unfamiliar with Piaget's ideas and seek access to them through this book will not necessarily proceed in the same way as those who are acquainted with Piaget's work and wish to refresh, synthesize, or complete their knowledge. The volume is divided into two major sections with several subdivisions as follows: * The Chronological Overview presents Piaget's early ideas and the most important sources of his inspiration, and reviews his research work dividing it into four main periods plus a transitional one. * The Glossary covers a number of explanatory concepts which are essential to Piaget's theory.

Jean Piaget is often considered to be one of the most important thinkers of the 20th century in the field of cognition. The author of this book challenges Piaget's frequent dual use of the meanings of words within the same paragraph. Extensive comparisons and examples of this extraordinary phenomenon are presented. Conclusions are offered to explain Piaget's intent. Contents: Introduction; The Absolute Subject; Piaget's Dual System; The Marvellous Monad; Activities of the Absolute; Appendix; Bibliography.

Piaget’s influence on psychology has been profound. His pathbreaking investigations and theories of cognitive development have set child psychology moving in entirely new directions. His bold speculations have provided the inspiration for the work of others. His studies have been the subject of many books and countless articles. And, significantly, his influence has spread to other disciplines and is having an ever-growing impact on the general culture at large.Here Jean Piaget, with the assistance of his long-time collaborator Bärbel Inhelder, offers a definitive presentation of the developmental psychology he has elaborated over the last forty years. This comprehensive synthesis traces each stage of the child’s cognitive development, over the entire period of childhood, from infancy to adolescence.