Madam Guyon: A Great Heroine is a biographical book written by Bessie G. Olson. The book tells the story of Jeanne-Marie Bouvier de la Motte-Guyon, also known as Madam Guyon, a French mystic and writer who lived in the 17th century. Madam Guyon was a controversial figure in her time, as she challenged the established religious authorities and preached a message of inner spirituality and devotion to God.The book provides a detailed account of Madam...