This text investigates the global distribution, historical development, and environmental impact of irrigation systems on human civilization. Leonard M. Cantor, a scholar in geography, synthesizes regional case studies to demonstrate how water management techniques have shaped agricultural productivity and land use patterns across diverse climates. The work provides a framework for understanding the interplay between hydrological availability and the socio-economic demands of growing populations.

Experts recognize this work as a foundational text for understanding the geographical constraints of agricultural water use. Readers frequently note the academic density of the prose, which serves as a comprehensive reference for students of environmental geography.