This volume examines Islamic maritime law and the actual practice of Muslim sailors during the classical period. It contains seven chapters. The first surveys the important terminology of maritime life. The second chapter examines the interrelationship of shipowners, crew, and passengers. The third chapter deals with maritime commercial laws; contracts for the leasing of ships, freight charges, transportation of goods, taxes and tolls in the ports. It also examines losses at sea, describes the laws concerning of jettison and general average, collision, and salvage of jetsam. Chapter four covers military maritime law; chapter five emphasizes the legal significance of territorial waters as interpreted by Muslim jurists, governors, and seafarers. The sixth chapter discusses how Islamic maritime law was adjudicated at sea, while the final one concludes the study by explaining how sea-travel affected the performance of Islamic religious duties.