The Achaemenid Persian Empire, which at its height stretched from Libya to Central Asia and governed tens of millions of people across dozens of cultures and languages, has been remembered primarily through the eyes of its Greek enemies — as a despotic, decadent civilization that served mainly as a foil for Athenian democracy. Lloyd Llewellyn-Jones, a professor of ancient history at Cardiff University, sets out to correct this distortion by telling the story of the Persian Empire from Persian sources: royal inscriptions, administrative tablets, archaeological remains, and the traditions preserved by later Persian writers. The result is a portrait of a sophisticated imperial system that pioneered techniques of multicultural governance, infrastructure, and communication that later empires would emulate. Cyrus the Great's policy of religious tolerance, Darius's construction of a road network spanning thousands of miles, and the administrative complexity revealed by the Persepolis tablets all receive detailed treatment. Llewellyn-Jones does not romanticize the empire — he documents its brutality, its reliance on forced labor, and the violence of its succession crises — but he insists that it deserves to be understood on its own terms rather than filtered through Greek prejudice. The book is particularly effective in showing how Greek accounts of Persian luxury and weakness were shaped by Athenian political needs rather than accurate observation. By the final chapters, covering the conquests of Alexander, the reader understands not just what was destroyed but what was lost — a political civilization of remarkable ambition and ingenuity.