Mary O'Shaughnessy is co-author of the Perri O'Shaughnessy New York Times bestselling books. She lives in the San Francisco Bay area with her husband. They have three grown childre...ver másMary O'Shaughnessy is co-author of the Perri O'Shaughnessy New York Times bestselling books. She lives in the San Francisco Bay area with her husband. They have three grown children. This is her first collaboration with her daughter, Corianna.ver menos