Julius Caesar: Man, Soldier and Tyrant by J. F. C. Fuller
This text covers Caesar's rise to power, and deals in detail with his campaign in Gaul. It follows his career from then until his death, through the conflict with Pompey and the futile Alexandrian campaign. The tactics and strategy of Caesar's wars are related to their political and diplomatic matrix, and through his conduct as a general, much of his character is revealed. Fuller concludes that Caesar was no innovator in the art of war, but that his great gift was for dash - frequently extracting himself from an apparently impossible position by the speed and impetus of his response. But frequently the position was due in the first place to Caesar's own error.