From the Gracchi to Nero: a history of Rome from 133 B.C. to A.D. 68 by H. H. Scullard

From the Gracchi to Nero: a history of Rome from 133 B.C. to A.D. 68 by H. H. Scullard is an excellent history of Rome from the middle of the republican era through the Julio-Claudian emperors. Not only is there a discussion of the political and military aspects of the Republic and empire there's also material on literature and art. The book is often used as a textbook but even if you're just interested in the topic it's still good, not dry.

Recommended!

Is available through Abebooks.