The Anabasis of Alexander (; ,
Alexándrou Anábasis), also known as the
History,
Campaigns, or (,
De Exp. Alex.; ,
Historíai Anabáseos Alexandron), was a
history of the
campaigns or expeditions ("
anabasis") into the
Persian Empire by
Alexander the Great. It was composed centuries after the fact by the historian
Arrian. This work consists of seven books and was
Arrian's most important work.