“Visit many books, but live in the Bible.” C.H. Spurgeon
We at Theologetics.org believe the Holy Bible is not only recommended reading but required reading. It should be read by all believers and all believers should be knowledgeable when it comes to its contents. There are many tactics the enemy uses to attack us and we need not be ignorant of the ways to defeat him. The Holy Scriptures is the “Sword of the Spirit” (Ephesians 6) that we use to fight against the attacks of Satan. Jesus himself used scripture to defeat the devil during His wilderness experience (Matthew 4:1-11). The more we know scripture and how to properly apply it, the better equipped for battle we are.
While we believe that no book outside of the Canon is perfect, the Bible is the litmus test that proves if any other book is doctrinally sound. That being said, here is a list of books dealing in theology and apologetics that we recommend for your edification.

Keeping Faith in the Age of Reason; Refuting Alleged Bible Contradictions, Dr. Jason Lisle

The Case for a Creator / Case for Faith / Case for Miracles / Case for Christ / Case for Grace / Case for Easter , Lee Strobel

The Christian Combat Manual
Helps for Defending Your Faith: A Handbook for Practical Apologetics, Dan Story

Mere Christianity, C.S. Lewis

The Pilgrim’s Progress, John Bunyan

The Attributes of God, A.W. Pink

Jesus Unmasked, Todd Friel

The Problem of Pain, C.S. Lewis

Forgotten God: Reversing Our Tragic Neglect of the Holy Spirit, Francis Chan

Answering the Objections of Atheists, Agnostics, and Skeptics, Ron Rhodes

Urban Apologetics: Restoring Black Dignity With the Gospel, Eric Mason
The Apologies of Justin Martyr, Justin Martyr

The Works of St. Anselm (translated), Sidney Deane

Van Til’s Apologetic, Greg L. Bahnsen

The Theology of Lordship 4 vol, John Frame

The Unseen Realm, Michael Heiser

Evidence That Demands A Verict, Josh & Sean McDowell