A Sea of Wealth: The Omani Empire and the Making of an Oceanic Marketplace (U California Press, 2025) is a sweeping retelling of the Omani position in the Indian Ocean. Here the reign of Oman’s longest-serving ruler, Saʿid bin Sultan, offers a keyhole through which we can peer to see the entangled histories of Arabia and the Gulf, South Asia, and East Africa in the Omani Empire. In centering this empire, Nicholas P. Roberts shows how Arabs, Africans, and Asians actively shaped the conditions of commercial engagement in the Western Indian Ocean, uniting the empire’s domains into a single oceanic marketplace in which Europeans and Americans had to accede if they wished to succeed. Drawing upon sources in three languages from four continents, A Sea of Wealth is a vivid narrative full of colorful characters that upturns many conventional understandings of our modern world. Nicholas P. Roberts was formerly Assistant Professor of History at Norwich University and the Howell Fellow for Arabian Peninsula and Gulf Studies at the University of Virginia. He is currently earning a JD at Case Western Reserve University. Ahmed Yaqouob AlMaazmi is an Assistant Professor of History at the United Arab Emirates University, with interests in the intersections of empire, science, slavery, law, environmental infrastructures, and material culture in the Arabian Peninsula and the wider Indian Ocean world.