Traveling along four prominent trade routes--the Silk Road, the Frankincense Trail, the Spice Route, and the Camino Real (for chiles and chocolate)--Nabhan follows the caravans of itinerant spice merchants from the frankincense-gathering grounds and ancient harbors of the Arabian Peninsula to the port of Zayton on the China Sea to Santa Fe in the southwest United States. His stories, recipes, and linguistic analyses of cultural diffusion routes reveal the extent to which aromatics such as cumin, cinnamon, saffron, and peppers became adopted worldwide as signature ingredients of diverse cuisines. Cumin, Camels, and Caravans demonstrates that two particular desert cultures often depicted in constant conflict--Arabs and Jews--have spent much of their history collaborating in the spice trade and suggests how a more virtuous multicultural globalized society may be achieved in the future.