Grace Gershuny has written extensively on soil, compost, and food system issues. As a staff member of USDA’s National Organic Program in the 1990s, she helped develop the organic regulations. She lives in Barnet, Vermont, and teaches at Green Mountain College.
Deborah L. Martin earned a BS in horticulture from Purdue University. A former extension agent in the USDA's urban gardening program, she’s edited books on gardening and contributes to Rodale’s Organic Life. She lives in Allentown, PA.