Clive Staples "Jack" Lewis (29 November 1898 - 22 November 1963), commonly referred to as C. S. Lewis, was a British writer and scholar. Lewis's works are diverse and include medieval literature, Christian apologetics, literary criticism, radio broadcasts, essays on Christianity, and fiction relating to the fight between good and evil. Examples of Lewis's allegorical fiction include The Screwtape Letters, The Space Trilogy and The Chronicles of Narnia.

Lewis was a close friend of J. R. R. Tolkien, the author of The Lord of the Rings. Both authors were leading figures in the English faculty at Oxford University and in the informal Oxford literary group known as the "Inklings". Owing to the influence of Tolkien and others, at about age 30, Lewis became a Christian - "a very ordinary layman of the Church of England" (Lewis 1952, p. 6). His conversion had a profound effect on his work, and his wartime radio broadcasts on the subject of Christianity brought him wide acclaim.

Lewis' works have been translated into over 30 languages and have sold millions of copies. The books of The Chronicles of Narnia are most popular and have been produced for stage, TV, and movies. Examples include the 1988 BBC TV serialization and the 2005 film adaptation of The Lion, the Witch and the Wardrobe, and the 2008 movie Prince Caspian. [Source: Wikipedia]