In this comprehensive biography, scholar Gillian Gill portrays what she calls Mary Baker Eddy’s “astonishing life.” Having carefully examined both published and unpublished historical materials, Gill presents Eddy as a radical Christian thinker and a pioneer in recognizing the connection between spirituality and healing. Gill’s witty, easy-to-read book provides a well-rounded view of Eddy’s childhood, illustrates her remarkable leadership at a time when women faced countless challenges, and clearly distinguishes Eddy’s work from that of Phineas P. Quimby.