The volume surveys the northern neighbors of classical Greece, mapping Illyrian, Macedonian, and Paeonian territories, their geography, social customs, and intertribal warfare. It examines economic ties between coastal Greek settlements and inland peoples, including trade in cattle, slaves, salt, and metals, and traces cultural exchanges and localized myths. Military character and organization receive attention, contrasting loosely organized tribal levies with coordinated Greek forces and describing the evolution of Macedonian military power that checked cross-border raids. The account also considers migrations and shifting coastal settlements that altered regional political and commercial dynamics.