Leonard Sweet is an author of many books, professor (Drew University, George Fox University, Tabor College), creator of preachthestory.com, and a popular speaker throughout North America and the world. His “Napkin Scribbles” podcasts are available on leonardsweet.com  

Frank Viola has helped thousands of people around the world to deepen their relationship with Jesus Christ and enter into a more vibrant and authentic experience of church. His mission is to help serious followers of Jesus know their Lord more deeply so they can experience real transformation and make a lasting impact. Viola has written many books on these themes, including God's Favorite Place on Earth, From Eternity to Here, and Jesus Manifesto (with Leonard Sweet). His blog, frankviola.org, is rated as one of the most popular in Christian circles today.