During the 1975 California drought, Robert Kourik created a primitive drip system, and since then he has continued to innovate using the latest technologies. He has written 10 instructional books advocating sustainable gardening, edible landscaping, and a healthy lifestyle, including Drip Irrigation for Every Landscape and All Climates, now in its second edition (2009), and Designing and Maintaining Your Edible Landscape Naturally (2005), later published in a paperback edition as Roots Demystified (2007). He lives in Occidental, California.