Book One
The first book's opening states that it began as a reflection about why some rulers are willingly obeyed and others are not. Everywhere, the author observes, humans fail to obey their rulers; the one exception is Cyrus the Great, a man who inspired obedience.[12]
A list of Cyrus's conquests follows, and the author seeks to understand why his subjects obeyed him "willingly." The work narrates his entire life, with only the first of eight books concerning the actual education of Cyrus.
The first book is devoted to Cyrus's descent, education, and stay at the court of his maternal grandfather, the Median dynast Astyages. Scholars have noted that Xenophon's description of pre-imperial Persian education is unusual and appears to be based upon the traditions of Sparta: the subject of Xenophon's other work the Constitution of the Lacedaemonians.
Books Two to Seven
Books two to seven cover Cyrus's life as a Median vassal on his path to establishing the world's largest empire. In these books, Cyrus is upheld as an example of classical virtue, but also uses what are now known as Machiavellian tactics. He proves a faithful vassal to the Medes, initially acting as a general to defend them from the more powerful and assertive Babylonian empire. He does so by cultivating alliances with nations such as the Chaldeans, Hyrcanians, Cadusians, Saka, and Susians. The remaining allies of Babylon include many nations of Asia Minor, as well as a corps of Egyptian infantry. Croesus of Lydia acts as general in the two powers' final field battle. Cyrus then returns with an increasingly international army to conquer Babylon. He is able to avoid a long siege by deflecting the course of the river through it, then sending soldiers in over the dry bed during a festival night. The claim that Babylon was conquered on the night of a festival by diverting the Euphrates River from its channel is also made by Herodotus (1.191).
Book Eight
Book eight is a sketch of Cyrus' kingship and his views of monarchy.
The last section of this book (8.8) also describes the rapid collapse of Cyrus's empire after he died. It has been speculated that this section was written by a later author. Alternatively, it may symbolize Xenophon's theoretical inconsistency concerning his conception of an ideal ruler, or show that Xenophon did not mean to describe an ideal ruler in any simple way. It may also intend to display, rather than undermine, Cyrus's strength as a leader.[13]
Related characters of questionable historical truth appear in the narrative as well. For example, the romance of Abradatas and Pantheia forms much of the narrative's latter half (v.1.3, vi.1.31ff, vi.4.2ff, vii.3.2ff).[14]
