Some Top Picks

Confronting Christianity: 12 Hard Questions for the World's Largest Religion – Rebecca McLaughlin (One of my favorite newer books - excellent!!)

Dynamics of Spiritual Life - Richard Lovelace (A book I seen mentioned over and over again by other authors)

Adorning the Dark  - Andrew Peterson (Autobiographical, for artsy people who want ot know about Andrew's life and his thinging concerning adorning the dark with beauty) 

For Kids: The Wingfeather Series - Andrew Peterson (Excellent!) 

Glory of Christ & On Communion with God - John Owen

The Call, Os Guinness (One of my favorite Authors)

In the Name of Jesus: Reflections on Christian Leadership - Henri Nouwen (Interesting and challenging read)

John Frame - The Doctrine of God & The Doctrine of the Christian Life (A refreshing author)

CS Lewis obviously!

Christian Living, Worship & The Church

Don't Waste Your Life - John Piper

Everyone's A Theologian - R. C. Sproul 

Transforming Grace and Discipline of Grace - Jerry Bridges

Holiness by Grace - Bryan Chapell

Putting Amazing Back Into Grace and A Better Way - Michael Scott Horton

Being Human - Jerram Barrs and Ranald Macauley

Spiritual Depression - Martin Lloyd-Jones

The Enemy Within - Kris Lungaard

Knowing God, Rediscovering Holiness, Keep in Step with the Spirit and Quest for Godliness - J. I. Packer

Desiring God, Pleasures of God, and Don't Waste Your Life - John Piper

Holiness - J. C. Ryle

The Contemporary Christian and Basic Christianity - John Stott

Outgrowing the Ingrown Church - Jack Miller

The Enduring Community - Brian Habig and Les Newsom

True Spirituality - Francis Schaeffer

The Prodigal God, Reason for God and others - Tim Keller

Theological Studies

Systematic Theology, Manual of Christian Doctrine and Summary of Christian Doctrine - Louis Berkhof

Christ of the Covenants - O. Palmer Robertson

The Church - Edmund Clowney

The Holy Spirit - Sinclair Ferguson

Created in God's Image, Saved By Grace and The Bible and the Future - Anthony Hoekema

The Institutes of Christian Religion - John Calvin

The Bondage of the Will - Martin Luther

The Covenants of Grace - John Murray

Redemption Accomplished and Applied, The Collected Writings - John Murray 

Principles of Conduct - John Murray

Westminster Confession of Faith

Shorter and Larger Catechisms

Heidelberg Catechism

The Reformed Doctrine of Predestination - Loraine Boettner

No Place for Truth - David Wells

A New Systematic Theology of the Christian Faith - Robert Reymond

Chosen by God and The Holiness of God - R. C. Sproul

The Collected Works of B. B. Warfield - Benajamin B. Warfield

Apologetics to the Glory of God and The Doctrine of the Knowledge of God - John Frame

Mere Christianity and God in the Dock - C. S. Lewis

The God Who Is There - Francis Schaeffer

A Concise Theology - J.I. Packer

The Reason for God - Tim Keller

Evangelism, Mercy & Missions

Tell the Truth - Bruce Metzger

Powerful Evangelism for the Powerless - C. John Miller

Let the Nations Be Glad - John Piper

The Heart of Evangelism - Jerram Barr

Ministries of Mercy - Tim Keller

Evangelism and the Sovereignty of God - J.I. Packer

Bible Study and Theological Reference Books

The ESV Study Bible - Crossway

NIV Spirit of the Reformation Study Bible - Zondervan

New Bible Dictionary, 3rd Edition - IVP

New Bible Commentary, 21st Century Edition - IVP

Evangelical Dictionary of Theology, ed. Walter Elwell

The NIV Exhaustive Concordance - Edward W. Goodrick and John R. Kohlenberger III

How to Study the Bible

How to Read the Bible for All It's Worth - Gordon Fee and Douglas Stuart

Knowing Scripture - R. C. Sproul

Getting the Message - Daniel Doriani