Adventuring through Paul's Epistles by Ray C Stedman
I got this book because I'm going to be teaching the youth Sunday school class in a few more weeks. I'm teaching on Paul and his letters. When I bought the book I was still trying to figure out which of Paul's letters to do. This book gives a brief (usually 10 pages) overview on the main points of each of Paul's letters. It was a good summary with some points covered very well. It was a good review but not anything near a study level. I did enjoy the book and I do recommend it. I hope to buy Stedman's other books - one on the gospels and another on Hebrews through Revelation.
And by the way, I'm teaching on Thessalonians.