The Doctor, as Lloyd-Jones was fondly called always writes clearly. You never read any book of his and wonder what it was really all about when you are finished. A medical doctor, he applied his diagnostician's methods to the texts that he studied. I have found his works to be among the best of the best. It is my view that no one can go wrong using his material to help them understand and apply Scripture to the life of an individual or as the case may indicate, to the health of the church. I wouldn't even try to say which book or series is best. They are all exceptional books by an exceptional man.