I really enjoyed Mere Christianity for its profound theology. It presented some very interesting and thought-provoking ideas about the Christian faith. However, I must say that The Screwtape Letters is an absolute must-read!
Despite being written by CS Lewis, who is known for his complex and sometimes challenging writing, The Screwtape Letters is actually rather easy to read. The format of the book, with letters from a senior devil to his nephew, makes it engaging and accessible.
The characters are well-developed and the story is full of humor and satire. It offers a unique perspective on the spiritual battle that takes place within each of us. I would highly recommend The Screwtape Letters to anyone who is interested in theology or just looking for a good read.