Despite claiming that the First triumvirate was legally inferior to the second triumvirate, due to it being an 'informal, private arrangement', he still views the alliance as highly significant and powerful for the time, going so far as to label it as 'invincible' and 'sufficient for complete domination'. Mackay's purpose in writing these books was to educate his audience, and therefore, his books will have less bias and opinion based information and interpretations. Sources he used to formulate his own narrative include Caesar's self-serving accounts, which he claims presents a 'flattering picture of himself', however still form the depiction of the Roman leader. He also used ancient sources, using the historians, Appian, Plutarch, Cassius Dio, and Suetonius, to retell how the triumvirate came into power. Mackay also uses other modern historians to formulate his evaluation of the triumvirate, such as 'Aspects of Roman history' by Alston, and 'The Roman Empire' by Wells, which can provide a modernistic interpretation of the existing ancient sources, upon which Mackay built on to come to his own
Despite claiming that the First triumvirate was legally inferior to the second triumvirate, due to it being an 'informal, private arrangement', he still views the alliance as highly significant and powerful for the time, going so far as to label it as 'invincible' and 'sufficient for complete domination'. Mackay's purpose in writing these books was to educate his audience, and therefore, his books will have less bias and opinion based information and interpretations. Sources he used to formulate his own narrative include Caesar's self-serving accounts, which he claims presents a 'flattering picture of himself', however still form the depiction of the Roman leader. He also used ancient sources, using the historians, Appian, Plutarch, Cassius Dio, and Suetonius, to retell how the triumvirate came into power. Mackay also uses other modern historians to formulate his evaluation of the triumvirate, such as 'Aspects of Roman history' by Alston, and 'The Roman Empire' by Wells, which can provide a modernistic interpretation of the existing ancient sources, upon which Mackay built on to come to his own