Letter 10 Themes: Spiritual significance of friendships and acquaintances; social, sexual, and intellectual vanity; pride; friendship and love of the world; avoiding being two-faced or duplicitous; hypocrisy. Screwtape-Letters_-10Download Letter 11 Themes: Understanding human laughter and the risk fo sinning through joking; danger of flippancy. Screwtape-Letters_-11Download Letter 12 Themes: Backsliding; dry times; loss of enthusiasm for...