Aristotle's Metaphysics was the first major study of the subject of metaphysics - in other words, an inquiry into 'first philosophy', or 'wisdom'. It differs from Physics which is concerned with the natural world: things which are subject to the laws of nature, things that move and change, are measurable. In Metaphysics, the study falls on 'being qua being' - being insofar as it is being; the causes and principles of being, the causes and principles of substances.

In this vivid and alluring history, medievalist Anthony Bale invites listeners on an odyssey across the medieval world. Journeying alongside scholars, spies, and saints, from Western Europe to the Far East, the Antipodes and the ends of the earth, Bale provides indispensable information on the exchange rate between Bohemian ducats and Venetian groats, medieval cures for seasickness, and how to avoid extortionist tour guides and singing sirens.

Simon Schama explores the mysterious contradictions of the Dutch nation that invented itself from the ground up, attained an unprecedented level of affluence, and lived in constant dread of being corrupted by happiness. Drawing on a vast array of period documents and sumptuously reproduced art, Schama recreates in precise detail a nation's mental state. He tells of bloody uprisings and beached whales, of the cult of hygiene and the plague of tobacco, of thrifty housewives and profligate tulip-speculators.

The Achaemenid Persian kings ruled over the largest empire of antiquity, stretching from Libya to the steppes of Asia and from Ethiopia to Pakistan. In Persians, historian Lloyd Llewellyn-Jones tells the epic story of this dynasty and the world it ruled. Drawing on Iranian inscriptions, cuneiform tablets, art, and archaeology, he shows how the Achaemenid Persian Empire was the world’s first superpower—one built, despite its imperial ambition, on cooperation and tolerance. This is the definitive history of the Achaemenid dynasty and its legacies in modern-day Iran.

Seeking to depose his brother Artaxerxes and take his place upon the Persian throne, Cyrus the Younger leads the 10,000 mercenaries on a dangerous campaign deep into the heart of Persia. There, Cyrus is killed and his generals overthrown, leaving a young Xenophon to lead the army on its treacherous journey home. Snowy mountains, wide rivers, violent blizzards, and hostile tribes obstruct their way, testing Xenophon's leadership and his soldiers' perseverance to the extreme.