This is an excellent, comprehensive and detailed review of the end of the republic — the very end as it only starts in 60BC, when Caesar was already 40 years old. As the title suggests, it runs to Octavian’s defeat of Antony and the immediate aftermath.
Based on the intro, I thought it might be very different from other popular histories, but it wasn’t; it was fresh without being odd. The most notable difference is in style; it is written in the “historical present” (a bit like Hilary Mantel’s Cromwell books, though obviously this is nonfiction). Commentary on the book says it builds out the role of “minor characters”; it certainly isn’t a biography, but it seemed quite balanced in discussing the people (mostly men) who were most relevant to events, without descending into trivia.
This is not military history. The accounts of battles, logistics, and the like are brief. There’s some social history, but again it seemed balanced — no exhaustive descriptions of what the lower classes ate, or anything like that. The author assumes some basic understanding of ancient Rome, and doesn’t always explain terms like mos maiorum when they are first mentioned. For those who have read about the era before, this is welcome, but a reader unfamiliar with Rome will need to consult the glossary, or to start with something more basic.
Overall, I found the book immersive and well written, and a nice alternative to the many books that approach the end of the republic entirely through biography, mainly of Caesar.