The Guide to Environmental Markets for Farmers and Ranchers, produced by the American Farmland Trust (AFT), provides an overview of available market opportunities for environmental credits and services, how farmers and ranchers can get involved in them, and ways to encourage their continued growth. The guide emphasizes forms of market participation that complement, rather than replace, agriculture, and how to carry out a realistic assessment of options. The AFT developed the guide specifically for farmers and ranches in Washington State, but much of its content should be useful at a wider scale.