Henri J.M. Nouwen was born in the Netherlands, where he was ordained to the priesthood. He has taught at the University of Notre Dame, Yale Divinity School, and Harvard Divinity School.

His works include Creative Ministry, The Wounded Healer, Reaching Out, In the Name of Jesus, and Beyond The Mirror. In 1986 he became the pastor of the L'Arche Daybreak community in Toronto, Canada.

As founding pastor of Saddleback Church with his wife, Kay, Dr. Rick Warren leads a 30,000-member congregation in California with campuses in major cities around the world.

As an author, his book The Purpose Driven Life has been called the bestselling non-fiction hardback in publishing history by Publishers Weekly, having sold more than 33 million copies.

As a theologian, he has lectured at Oxford, Cambridge, Harvard, University of Judaism, and dozens of universities and seminaries. As a global strategist he advises world leaders and has spoken to the United Nations, US Congress, Davos Economic Forum, TED, Aspen Institute, and numerous parliaments.

Rick has also founded the Global PEACE Plan, which Plants churches of reconciliation, Equips leaders, Assists the poor, Cares for the sick, and Educates the next generation in 196 countries.

Clive Staples Lewis (1898–1963) was one of the intellectual giants of the twentieth century and arguably one of the most influential writers of his day. He was a Fellow and Tutor in English Literature at Oxford University until 1954, when he was unanimously elected to the Chair of Medieval and Renaissance Literature at Cambridge University, a position he held until his retirement.

He wrote more than thirty books, allowing him to reach a vast audience, and his works continue to attract thousands of new readers every year.

His most distinguished and popular accomplishments include Mere Christianity, Out of the Silent Planet, The Great Divorce, The Screwtape Letters, and the universally acknowledged classics The Chronicles of Narnia. To date, the Narnia books have sold over 100 million copies and been transformed into three major motion pictures.