CS Lewis
I love CS Lewis. Specifically, his Space Trilogy and The Screwtape Letters. All of those come highly highly recommended from me, check em out, especially if you want a very informative model of the spiritual history of the Church and the function of Christianity in the lives of men. The Space Trilogy books are easily my favorites out of everything ive read, id love to talk to someone about them so if you ever get around to reading them or have read them let me know.
Peace
Peace