The Civil War of Caesar is still in print and lists as co-authors Caesar himself and modern historian Jane P. Gardner. The power struggle between Caesar and Pompey spanned the entire Roman world from Spain to Egypt and on land and sea. At stake was whether Rome would remain a republic or have power concentrated in one man. Julius wrote a tense and gripping narrative of his own but some chapters written by his underlings do not always match his. There was a Penguin reprint in 1976.