Few images are as evocative as the silhouette of the Arab dhow as, under full sail, it tacks to windward on glittering waters of Red Sea before moving across the face of the rising or setting sun. In this authoritative new book, Dionisius A. Agius, one of the foremost scholars of Islamic material culture, offers a lucid and wide—ranging history of the iconic dhow from medieval to modern times. Traversing the Arabian and African coasts, he shows that the dhow was central not just to commerce but to the vital transmission and exchange of ideas. Discussing trade and salt routes, shoals and wind patterns, spice harvest seasons and the deep and resonant connection between language, memory and oral tradition, this is the first book to place the dhow in its full and remarkable cultural contexts.