Sheldon's cleverly written book serves to remind all people that we are all sinners. Our nature is to only notice and talk about the "big" sins-such as adultery and murder. But there are many "subtle" sins, of the mind, of our own self-involvement, that require Christians to take another look at what the Bible tells us about being obedient to the Word. Very enjoyable. At the risk of spoiling the book for other readers, I will simply say the second part of the book includes many surprises that will open your eyes!