De Bello Hispaniensi is preceded by De Bello Alexandrino and De Bello Africo. These three works end the Cesarean corpus relating Caesar's civil war. Though normally collected and bound with Caesar's authentic writings, their authorship has been debated since antiquity. One very plausible theory favors Hirtius as the author of De Bello Alexandrino (see there for details). But due to considerable differences in style, scholarly consensus has ruled out the author of the latter, as well as Julius Caesar, as the author or authors of the two last parts. It has been suggested that these were in fact rough drafts prepared at the request of Hirtius by two separate soldiers who fought in the respective campaign; and had he survived, Hirtius would have worked them up into more effective literary form. Regarding De Bello HispaniensiT. Rice Holmes writes:Bellum Hispaniense is the worst book in Latin literature; and its text is the most deplorable. The language is generally ungrammatical and often unintelligible. The copyists performed their tasks so ill that in the forty-two paragraphs there are twenty-one gaps and six hundred corrupt passages, which Mommsen and lesser men have striven with an industry worthy of a better cause to restore. About the author, A.G. Way ventures that Macaulay's guess that he was some 'sturdy old centurion who fought better than he wrote' is possibly not far off the truth (p. 141).