Few Civil War historians have been more prolific over as large a segment of the historical landscape than George Rable of the University of Alabama. I’ve read most of his books and I always find that my understanding of the period deepens as a result. Rable is one of those historians that makes you smarter after having read one of his books. My two favorites are The Confederate Republic: A Revolution Against Politics (Civil War America) and Fredericksburg! Fredericksburg!, which in my mind is one of the most innovative Civil War campaign studies ever written. His most recent book is, God’s Almost Chosen Peoples: A Religious History of the American Civil War (Littlefield History of the Civil War Era), which I am thoroughly enjoying.
If you are not familiar with Rable’s scholarship this is the perfect place to start.