In my sermon, "Keep Yourselves from Idols, Part 3", I recommended these resources for further study on idolatry or 'the idols of the heart'.
David Powlison’s article “Idols of the Heart and ‘Vanity Fair’.”
Tim Keller’s Counterfeit Gods. [Available at the Bethlehem Bookstore]
Elyse Fitzpatricks’s Idols of the Heart. [Available at the Bethlehem Bookstore]
The “How People Change” seminar at Bethlehem Baptist or class that is offered here.
Mark Driscoll’s messages on idolatry.