Dr. Lainna Callentine is a guest professor at Wheaton College, author, speaker, pediatrician, and homeschool mother who has taught at all levels from elementary to doctorate. Dr. Callentine received her B.A. from Northwestern University, where she studied both human development and social policy while competing on a full athletic scholarship in basketball. She holds a master’s degree in education and an M.D. from the University of Illinois at Chicago. Dr. Callentine left formal medicine in the E.R. to stay home and homeschool her three children. Currently, she is working on a nine-book series called God’s Wondrous Machine with Master Books. It is a hands-on curriculum for children showcasing the human body. Dr. Callentine has dedicated herself to being a lifelong child and family advocate—and to fight to rebuild the American family—because she believes that children need their parents more than ever, in order to grow into healthy, spiritually mature adults.