Three books on justification recommended by Steve Camp on his website:
“1. John Piper’s excellent tome: Counted Righteous In Christ. This is a short, simple yet profound treatment of this subject that I found invaluable in my study. As only Piper can, he deals with this subject historically, theologically and most important–biblically. This is one of Pipes finest.
“2. James White’s landmark work: The God Who Justifies. Not since James Buchanan’s “Doctrine of Justification” has there been such an exhaustive, expository and exegetical treatment as you will find on the most essential of all doctrines: justification by faith alone.”