Rev. James Martin, SJ, is a Jesuit priest, editor at large of America magazine, and bestselling author of The Jesuit Guide to (Almost) Everything, Between Heaven and Mirth, and Together on Retreat. Father Martin has written for many publications, including the New York Times and The Wall Street Journal, and he is a regular commentator in the national and international media. He has appeared on all the major radio and television networks, as well as in venues ranging from NPR's Fresh Air, FOX's The O'Reilly Factor, and PBS's NewsHour to Comedy Central's The Colbert Report. Before entering the Jesuits in 1988, Father Martin graduated from the Wharton School of Business and worked for General Electric for six years.

Clive Staples Lewis was born in 1898. Known as "Jack" by his friends, Lewis and his good friend J.R.R. Tolkien, the author of The Lord of the Rings trilogy, were part of a writer's club, The Inklings, who would meet at the local pub to discuss story ideas. Lewis's fascination with fairytales, myths, and ancient legends coupled with inspiration drawn from his childhood led him to write The Lion, the Witch and the Wardrobe, one of the best-loved books of all time. Six further books in the immensely popular Chronicles of Narnia followed, and the final title, The Last Battle, received the Carnegie Award, one of the highest marks of excellence in children's literature.

Clive Staples Lewis (1898-1963) fue uno de los intelectuales más importantes del siglo veinte y podría decirse que fue el escritor cristiano más influyente de su tiempo. Fue profesor particular de literatura inglesa y miembro de la junta de gobierno en la Universidad Oxford hasta 1954, cuando fue nombrado profesor de literatura medieval y renacentista en la Universidad Cambridge, cargo que desempeñó hasta que se jubiló. Sus contribuciones a la crítica literaria, literatura infantil, literatura fantástica y teología popular le trajeron fama y aclamación a nivel internacional. C. S. Lewis escribió más de treinta libros, lo cual le permitió alcanzar una enorme audiencia, y sus obras aún atraen a miles de nuevos lectores cada año. Sus más distinguidas y populares obras incluyen Las Crónicas de Narnia, Los Cuatro Amores, Cartas del Diablo a Su Sobrino y Mero Cristianismo.

N. T. Wright is the former bishop of Durham in the Church of England and one of the world's leading Bible scholars. He is now serving as the Chair of New Testament and Early Christianity at the School of Divinity at the University of St. Andrews. For twenty years he taught New Testament studies at Cambridge, McGill, and Oxford Universities, and he has been featured on ABC News, Dateline, The Colbert Report, and Fresh Air. Wright is the award-winning author of Surprised by Scripture, The Case for the Psalms, How God Became King, Simply Jesus, After You Believe, Surprised by Hope, Simply Christian, Scripture and the Authority of God, The Meaning of Jesus (coauthored with Marcus Borg), as well as being the translator for The Kingdom New Testament.

Desmond Mpilo Tutu was awarded the Nobel Peace Prize in 1984. In 1986 he was elected archbishop of Cape Town, the highest position in the Anglican Church in South Africa. In 1994, after the end of apartheid and the election of Nelson Mandela, Tutu was appointed as chair of South Africa's Truth and Reconciliation Commission to investigate apartheid-era crimes. His policy of forgiveness and reconciliation has become an international example of conflict resolution and a trusted method of postconflict reconstruction. He is currently the chair of The Elders, where he gives vocal defense of human rights and campaigns for the oppressed.

The Reverend Mpho A. Tutu is currently the executive director of The Desmond and Leah Tutu Legacy Foundation.

Catherine Wolff is the former director of the Arrupe Center for Community-Based Learning at Santa Clara University. She is married to author Tobias Wolff. They have three grown children and live in Stanford, California.

Ann Patchett is the author of six novels and three books of nonfiction. She has won many prizes, including Britain's Orange Prize, the PEN/Faulkner Prize, and the Book Sense Book of the Year. Her work has been translated into more than thirty languages. She lives in Nashville, Tennessee, where she is the co-owner of Parnassus Books.

Candida Moss is professor of New Testament and Early Christianity at the University of Notre Dame. A regular contributor to The Daily Beast, Moss has appeared on The O'Reilly Factor, CBS News, FOX News, the History Channel, National Geographic, and the Travel Channel, and has served as an expert commentator for the Los Angeles Times, The Wall Street Journal, and other national media outlets.

John Dominic Crossan, professor emeritus at DePaul University, is widely regarded as the foremost historical Jesus scholar of our time. He is the author of several bestselling books, including The Historical Jesus, God and Empire, Jesus: A Revolutionary Biography, The Greatest Prayer, and The Power of Parable. He lives in Minneola, Florida.

Father Jonathan Morris is a Catholic priest in the Archdiocese of New York and serves in campus ministry at Columbia University. He is also an analyst for the Fox News Channel and host of the News & Views program on The Catholic Channel, SiriusXM. His books include the New York Times bestseller The Way of Serenity, God Wants You Happy, and The Promise: God's Purpose and Plan for When Life Hurts.

Thomas H. Groome is chair of the Department of Religious Education and Pastoral Ministry and professor of theology and religious education at Boston College’s School of Theology and Ministry and author of What Makes Us Catholic?