There are many books about the first princeps of Rome, Augustus. Here you will find books that tend towards the scholarly, focusing on specific aspects of the man, his reign, or his times, or more general history books about the end of the Republican and the start of the Imperial period.
1. Augustus and the Greek World. 1965. Oxford.
In Augustus and the Greek World, G.W. Bowersock looks at Augustus' efforts to incorporate Greek culture in the Roman world.
2. The Augustan Aristocracy. 1987. Oxford.
The Augustan Aristocracy is a collection of thirty essays, by Ronald Syme, about the elite in the time of Augustus.3. The Power of Images in the Age of Augustus. 1988. U of Mich. Press.
Paul Zanker shows how Augustus used art, including coinage, as propaganda to give dignity and legitimacy to his position.4. Actium and Augustus. 1995. U of Mich. Press.
In "Actium & Augustus: The Politics & Emotions of Civil War," R. A. Gurval concentrates on the contemporary views of the importance of the Battle of Actium.5. The Roman Empire 27 BC -- AD 476. 1982. Oxford.
In "The Roman Empire 27 BC -- AD 476, A Study in Survival," Chester Starr looks at the development throughout the Imperial period of the government and military forms initiated by Augustus.