Isabel Briggs Myers

Isabel Briggs Myers (born Isabel Briggs; October 18, 1897 – May 5, 1980) was an American writer who co-created the Myers–Briggs Type Indicator (MBTI) with her mother, Katharine Cook Briggs. The MBTI is one of the most-often used personality tests worldwide; over two million people complete the questionnaire each year. Isabel Briggs Myers typed herself as an INFP (Mediator).