USA Today tells me The Shack is the latest smash hit from the religion section.

A little novel written by an Oregon salesman and self-published by two former pastors with a $300 marketing budget is lighting up USA TODAY’s Best-Selling Books list with a wrenching parable about God’s grace. First-time author William P. Young’s book The Shack, in which the father of a murdered child encounters God the Father as a sarcastic black woman, Jesus as a Middle Eastern laborer and the Holy Spirit as an Asian girl, is No. 8 on the list.