Sanctification - J.C. Ryle
Mere Christianity – C.S. Lewis
Church of Irresistible Influence – Robert Lewis
Every Thought Captive – Richard Pratt
Do You Know God - J.I. Packer
The [Westminster] Confession of Faith - A. A. Hodge
Redemption Accomplished and Applied - John Murray
Van Til's Apologetic: Reading and Analysis - Greg L. Bahnsen
(or any by Cornelius Van Til)
Christian Apologetics - Cornelius Van Til
The Holiness of God - R. C. Sproul
Westminster Dictionary of Theological Terms - Donald K. McKim
Men and Women in Biblical Perspective - James B. Hurley
Predestination - R. C. Sproul