Mary Baker Eddy was the founder of Christian Science, a system of religious thought and practice adopted by the Church of Christ, Scientist. She is the author of the movement's textbook, Science and Health with Key to the Scriptures, and founded the Christian Science Publishing Society, which continues to publish a number of periodicals including The Christian Science Monitor.
Married three times, she took the name Mary Baker Glover from her first marriage. She was also known from her third marriage as Mary Baker Glover Eddy or Mary Baker G. Eddy.