Sprinkler irrigation coverage is illustrated in the image here that comes from Lecture 3 in a course in the Biological and Irrigation Engineering department at Utah State University. Agricultural students anywhere across the world can learn water handling and conservation from the Utah State lectures. IrrigationTutorials.com is a website with a broad range of tutorials on the practicalities of selecting and installing irrigation systems. Extensive details of sprinkler irrigation are provided by the University of Georgia College of Agricultural and Environmental Sciences in a website section on factors to consider in selecting a farm Irrigation system. Websites about irrigation are interconnected richly, making one of humankind’s most ancient technologies a click or two away from anyone with Net access who wants to understand and implement irrigation.