Tim Challies echoes a question by R.C. Sproul. How would a worker at your local bookstore respond to the question, “Where can I find a book that will teach me about the depths and the riches of the atonement of Christ?” You may have to define what you mean by “deep” and “rich.” A commenter, Brenda of the blog Coffee, Tea, Books, and Me, said that of the three Christian bookstores in her area, the one selling the good books with strong theology closed.