What I believe series

Pauline Diana Baynes (9 September 1922 – 1 August 2008) was an English illustrator, author, and commercial artist. She contributed drawings and paintings to more than 200 books, mostly in the children's genre. She was the first illustrator of some of J. R. R. Tolkien's minor works, including Farmer Giles of Ham, Smith of Wootton Major, and The Adventures of Tom Bombadil. She became well known for her cover illustrations for The Hobbit and The Lord of the Rings, and for her poster map with inset illustrations, A Map of Middle-earth. She illustrated all seven volumes of C. S. Lewis's Chronicles of Narnia, from the first book, The Lion, the Witch and the Wardrobe.