Isabel Briggs Myers (October 18, 1897 - May 5, 1980) was a psychological theorist who researched personality theory with her mother, Katharine Cook Briggs (1875 - 1968). Katharine's interest in personality theory was born when she read a book by Carl Jung in 1923. Katharine shared her findings with Isabel and together they created an inventory. They both had a passion for understanding human development and a desire to make personality theory accessible to everyone in a practical way.
Birthday: October 18, 1897