The Jean Piaget Society is an international learned society dedicated to studying human knowledge from a developmental perspective. It is named after the highly regarded developmental psychologist Jean Piaget. Since 1989, its full name has been the Jean Piaget Society: Society for the Study of Knowledge and Development. It was established in 1970 by Temple University professor Lois Macomber in Philadelphia, Pennsylvania.[1][2] The Society is based in Media, Pennsylvania,[3] and its current president is David Witherington.[4] It sponsors a book series, an annual meeting, and the peer-reviewed journal Human Development, which is the Society's official journal.[5][6] The book series, entitled the "Jean Piaget Symposium Series", is based on the Society's annual meetings. It was published by Lawrence Erlbaum Associates for over thirty years.[7]