Systematic Fasting is a work by Wesleyan James Miller in which he studies biblical fasting, extracting some principles from Scripture to guide those who would like to practice fasting in their own spiritual life. Chapters mention false and true fasting, prayer, objections to fasting, etc.
Mark Cambron’s Bible Doctrines work is an extensive doctrines book used by Florida Bible College. Cambron’s work covers Angels, Man, Holy Spirit, Christ, Salvation, Sin, Prayer, and the Doctrine of God.
Short Method Of Prayer And Spiritual Torrents is a 19 chapter work on prayer, Methodology. Chapters are short.
Stanley The Way the Lord hath Led Me
Sermons by EM Bounds. Most of the sermons are on prayer in one form or another. Some of these are from his books it appears, and others are just rare copies of an EM Bounds Sermon.
This is a large older theology by Ames, on the essence (Marrow) of a Spiritual life.
A Guide to Fervent Prayer by Arthur Pink
twenty sermon by Spurgeon
Austin-Sparks In Touch with the Throne (prayer) is a 5 chapter work on prayer, Keeping in touch with the Throne of God in heaven.
This short 7 chapter work on prayer by Morgan (Congregationalist) presents us with the possibility, platform, plane and practice of prayer.
Bounds work explaining the Essentials of Prayer, dissecting the different essential parts of prayer
Winslow Soul Heights And Soul Depths is a 9 chapter devotional seeing when men pray to God.
Bound’s work of Prayer and Praying men examines how prayer and the man of God in ministry works.
The Possibilities of Prayer. A work on prayer by EM Bounds, Bounds looks at the ministry of prayer examining how prayer uses the promises of God, and what is possible when one takes advantage of what God has offered us in prayer.
Torrey How to Pray is a classic work by this great man of God on how the Christian should view and approach his prayer life.