I've been looking for a book like this for sometime. BOTH sides of the issues which Christians are divided over are explained. Not only are the issues explained fairly, but Erwin Lutzer brings in the giants to defend each position; no straw men here. The Martin Luther-vs-Erasmus section over Free Will is really good. Another thing which I like is that the author lets you know his positions on the issues. This allows the reader to decide if he is being fair to the other view.