Wayne Grudem is one of the most influential theologians and seminary professors of our time. He has written numerous books, including the influential Systematic Theology: An Introduction to Biblical Doctrine (which is seen by many as the definitive textbook on the market) and edited numerous other books and resources like The ESV Study Bible.
Grudem’s theology lectures are now free on mp3 through iTunes. The mp3 Podcast, which was recorded during his lectures given at his church’s Sunday school, contains over 100 lectures on every topic covered in his textbook.
In a way, these lectures kind of function like a 100+ hour audiobook of Grudem’s Systematic Theology. My personal plan is to chip away at them by listening to a few a month.
“I do not believe that God intended the study of theology to be dry and boring. Theology is the study of God and all his works! Theology is meant to be LIVED and PRAYED and SUNG! All of the great doctrinal writings of the Bible (such as Paul’s epistle to the Romans) are full of praise to God and personal application to life.” Wayne Grudem