Collapse and Recovery of the Roman Empire presents a study of third century Rome, which is lavishly illustrated and a lucid read, typical of Michael Grant's inimitable style.
In Collapse and Recovery of the Roman Empire, Michael Grant asserts that the fact that the Roman empire of the third century AD did not collapse is one of the miracles of history. He argues that at that time the empire seemed ripe for disintegration and expresses amazement that it continued, in the west, for another two hundred years, and in the east, for far longer.

Michael Grant examines the reasons for collapse, including analyses of the succession of emperors, the Germans and the Persians and also, the reasons for its remarkable recovery, including discussions of strong emperors, a reconstituted army, finance and coinage and state religion.