A masterpiece, Lewis's material draws out scriptural sentiment like no other works. My favorite of the series is "The Silver Chair". The Space Trilogy is a must read as well, I never would have thought that an author could capture and depict such an in depth contrast between the spiritual and earthly powers until I read it. Tolkien imo exceeded in many other ways and I will always appreciate his books. Especially how they appeal to the Christian warfare and narrative in terms of a broader scope. If I had to pick of which author is my favorite it would definetly be Lewis.