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Throughout the United States, people are increasingly concerned about where their food comes from, how it is produced, and how its production affects individuals and their communities. The answers to these questions reveal a complex web of interactions. While large, distant farms and multinational companies dominate at national and global levels, innovative programs including farmers’ markets, farm-to-school initiatives, and agritourism are forging stronger connections between people and food at local and regional levels. At all levels of the food system, energy use, climate change, food safety, and the maintenance of farmland for the future are critical considerations. The need to understand food systems—what they are, who’s involved, and how they work (or don’t)—has never been greater.