R.A. Torrey was an American pastor and writer of Christian books. Torrey was good friends with Dwight L. Moody, ather popular religious figure in the late 19th century, and became superintendent of what is w kwn as the Moody Bible Institute. Torrey's writings are still popular among Christians today. Torrey wrote the devotional How to Study the Bible as a response to many letters and questions he received from Christians during his life.