Dr. Carl G. Jung who popularized the concepts of introversion and extroversion in the early 20th century.
Credit: nndb.com
Copyright: nndb.com
Published by David A. Reinstein, LCSW - Featured Contributor in Technology
Clinical Social Worker, psychotherapist, born in Boston and a relatively unscathed survivor of the 60 s. Fan of technology, guitars, creating music and poetry. Mental wellness coach, staff trainer and parent... View profile
