Glick has drawn on original documents of the fourteenth and fifteenth centuries to present in this volume a thorough and lively study of Valencian irrigation and society. In Part One Glick describes medieval Valencian irrigation in the epoch of its fullest documentation (1238-4500). Part Two is concerned generally with the spread of Islamic irrigation technology and, more specifically, with cultural diffusion and the persistence of cultural forms during the transition in Spain from Islamic to Christian rule.