• Bookshelf Anomalies #1
• Bookshelf Anomalies #2
• Bookshelf Anomalies #3
• Bookshelf Anomalies #4

The anomaly of these two books lie in the authors: John Piper and Tony Jones. If you don’t know about the history of these two gentlemen (it’s not adversarial, but they do disagree with one another and have even met for lunch to discuss their differences), read this post on Tony Jones’ blog. You can also search for “John Piper” on Tony’s blog for a few more thoughts.