Marvin Olasky recently interviewed Tim Keller for the May 8, 2010 edition of World Magazine. The title of the article is "A Wave Came In: How an Introvert Like Tim Keller Became a Great Preacher". I have never been an introvert or a great preacher, but I know that Tim Keller has a lot to teach us young preachers.
You can listen to the full interview here.
You can read what was printed in World here.