Mike Yaconelli is the author of bestselling books Dangerous Wonder and Messy Spirituality. He was the senior editor for the Wittenburg Door (1971-1996), a satirical religious magazine noted for its irreverent humor, in-depth interviews, and commitment to reforming the evangelical church. He was the cofounder of Youth Specialties, an international organization devoted to equipping youth workers through training and resources. Mike was a prophetic voice in the church-at-large and was a devoted husband and father until his death in 2003.David Fisher is senior pastor of Plymouth Church in Brooklyn, New York. He was formerly senior pastor of Colonial Church in Edina, MN.