Al Mohler has a round up of the 2012 best books for preachers in a very long article at Preaching magazine. I did not read the full article (I don’t have that much time)
If you are just interested in the short list of the 10 Books Every Preacher Should Read in 2013 (part of Mohler’s article) then this is the link you want to go do. Of the shorter list, I have only read Delighting in the Trinity, but I have Christ-Centered Biblical Theology and Through the Eye of a Needle: Wealth, the Fall of Rome and the Making of Christianity in the West, I just have not read them yet.