I started reading The Inklings by Philip and Carol Zaleski. It is about the group of Christian thinkers in Oxford who exchanged ideas about philosophy, literature, religion, ethics, etc. The book focuses on four Inklings: C. S. Lewis, J. R. R. Tolkien, Owen Barfield, and Charles Williams. Most of the background information about Lewis and Tolkien I knew already. Lewis was not a saint in his past, just in case anyone has him on a pedestal. The book is very easy to read.