It seems as if ancient Rome has had a resurgent presence in popular culture over the last decade:
Steven Saylor's novels, the terrific and sadly erstwhile show
Rome, Anthony Everitt's bestselling biographies of
Cicero and
Augustus. There was even
this book.
Perhaps sensing a trend, Robert Harris wrote
Imperium. I'm fond of Harris, though he never seems to deliver as much as he promises; both
Enigma and
Fatherland were more intriguing than successful, and the latter borrowed shamelessly from a premise of
Philip K. Dick. This book is about in that line, but has the particular saving grace of featuring a realistic portrait of
Marcus Tullius Cicero. Cicero is my favorite figure of Republican Rome, a middle class striver who survived on his wits and later
died with his principles basically intact, and one of the few politicians of any age who's writings survive on their own merit. (Churchill may prove to be another, although perhaps not; a few generations ago they would have said the same of Disraeli.) Cicero makes
Imperium worth reading, though you might be better off reading one of my favorite
contemporary accounts of Rome, Tacitus aside.