Way back when, Mark Driscoll decided that he was going to base a sermon series on the questions put forth by thousands of internet denizens. He called the series, Religion Saves: and 9 other Myths. I mentioned it in my Ask Anything Post. He claimed that much of Paul's Epistles were done in the same vein - answering questions that the Church was struggling with - like, "If I sleep with my stepmom, is that bad?" (I Corinthians)
It was during this preaching series that Driscoll began taking questions from the audience during the sermon (Oral Sex Virgins, Masturbation, and Pregnant Rape Victims) . They would text in their question and he would respond to some of them after the conclusion of the sermon. He has since continued this practice.
In the book, Driscoll devotes a chapter to each of the questions that were highlighted in the series.
5. Sexual Sin
6. Faith and Works
8. The Emerging Church
9. The Regulative Principle
I'm not a huge fan of reading a book that is based on a sermon series I've already heard, but the truth is, I'd rather read a rehash books of Driscoll's than most of the other books out there.