Michael Grant, The Twelve Caesars – Institute for the Study of Western Civilization

Michael Grant,

The Twelve Caesars,

Barnes & Noble Books; 2nd Thus edition (1996),

Here is the best book for an overview of the successors to Augustus: Tiberius, Caligula, Claudius, Nero. It is Michael Grant retelling the stories written by Suetonius in his own book of the same name.