This remarkable work is the best exposition of the activities of Alexander the Great, which was written in antiquity. Just as Xenophon in his "Campaign 10000" talks about the campaign of Cyrus the Younger, Arrian illuminates Alexander's campaign step by step. Here is what Arrian himself says about his book: "If anyone is amazed why it occurred to me to write about Alexander when so many people wrote about him, then let him first read all their writings, get acquainted with mine - and then let him be surprised." Arrian is considered the most impartial of the biographers of Alexander the Great.