This collection, carefully chosen and arranged by Walter Hooper, is the most extensive ever published. Included here are the letters Lewis wrote to such luminaries as J.R.R. Tolkien, Owen Barfield, Arthur C. Clarke, Sheldon Vanauken, and Dom Bede Griffiths. To some particular friends, such as Dorothy L. Sayers, Lewis wrote fifty letters alone. The letters deal with all of Lewis's interests—theology, literary criticism, poetry, fantasy, children's stories—as well as his relationships with family members and friends.