Mark Hart is executive vice president of Life Teen International as well as an award-winning author, popular speaker, and host of the XM Sirius Catholic radio show “Fired Up with Mark Hart.” Among his books is the best-selling The R Father: 14 Ways to Respond to the Lord’s Prayer (The Word Among Us Press, 2010). His weekly podcast and DVD Bible study resources have helped Catholics of all ages to read and study Scripture. He lives in Phoenix with his wife, Melanie, and their four children.