R. A. Torrey How to Pray Effectively: Updated for Today's Readers With Introduction and Study Guide.

David McIntyre The Hidden Life of Prayer: In Today's English and with a Study Guide

Andrew Murray With Christ In The School Of Prayer: In Today's English and with a Study Guide

C. H. Spurgeon on Prayer: 31 Biblical Insights for Prayers That Avail Much

Isaac Watts A Guide to Prayer: In Today's English and with a Study Guide

Matthew Henry on Prayer: 31 Biblical Insights for Learning How to Pray

E. M. Bounds on Prayer: 31 Powerful Insights to Strengthen Your Prayer Life.

George Muller on Prayer: 31 Prayer Insights for Developing an Intimate Relationship with God

J. C. Ryle on Prayer: 31 Insights for Understanding the Purpose and Power of Prayer

Jonathan Edwards on Prayer: 31 Biblical Insights to Deepen and Enrich Your Prayer Life