The History and Coinage of the Roman Imoerators 49-27 BC, by David R. Sear.
The brief history covered by "The History and Coinage of the Roman Imoerators 49-27 BC" withnessed the violent transition of the Roman state from a republican constitution, presided over by the Senate, to a full military autocracy under the control of one man, Emperor Augustus.
This book has 350 pages, describing the history and the coins in details. For the one who love the ancient history as well as the coins have here a book giving answer to many questions. 435 coins pictured, decribed and priced.