Drawing on nearly 50 years of teaching organic farming and gardening, the staff of the UC Santa Cruz Farm & Garden Apprenticeship and invited authors have developed an updated and expanded resource for instructors based on many of the skills and concepts taught in UCSC's annual Apprenticeship in Ecological Horticulture program. Teaching Organic Farming & Gardening: Resources for Instructors, 3rd Edition addresses practical aspects of organic farming and gardening, applied soil science, and social and environmental issues in agriculture. New features of the 3rd Edition include revised and expanded lecture outlines, new demonstrations and exercises, detailed narrative supplements to support lecture topics, and new appendices and illustrations. Although much of the material has been developed for field or garden demonstrations and skill building, most of the units can also be tailored to a classroom setting.The 700-page manual was produced by UCSC's Center for Agroecology & Sustainable Food System and is designed for a wide audience of those involved in teaching farming and gardening skills and sustainable agriculture concepts, including colleges and universities with sustainable agriculture programs, student farms or gardens, and on-farm education programs; urban agriculture, community garden, and farm training programs; farms with internships or apprenticeships; agriculture extension stations; school gardening programs; organizations such as the Peace Corps, US AID, and other groups that provide international training in food growing and ecological growing methods; and master gardener programs.