Laura Allen is the author of Greywater, Green Landscape: How to Install Simple Water-Saving Irrigation Systems in Your Yard and the co-founder of Greywater Action and has spent the past 20 years exploring simple and ecological water solutions. She is the lead author of the San Francisco Graywater Design Guidelines for Outdoor Irrigation, and authored The Water-Wise Home: How to Conserve and Reuse Water in Your Home and Landscape (Storey Press, 2015) and Greywater, Green Landscape (2017). She has a BA in environmental science, a teaching credential, and a master’s degree in education. Laura leads classes and workshops on rainwater harvesting, greywater reuse, and composting toilets. Laura has presented widely on greywater reuse, including at the Water Smart Innovations Conference, Bioneers, California Environmental Health Association conference, and California Landscape Contractors Association conference.