This volume is a collection of essays on medieval Spain, written by leading scholars on three continents, that celebrates the career of Thomas F. Glick.  Using a wide array of innovative methodological approaches, these essays offer insights on areas of medieval Iberian history that have been of particular interest to Glick: irrigation, the history of science, and cross-cultural interactions between Jews, Christians, and Muslims. By bringing together original research on topics ranging from water management and timekeeping to poetry and women’s history, this volume crosses disciplinary boundaries and reflects the wide-ranging, gap-bridging work of Glick himself, a pivotal figure in the historiography of medieval Spain.