The history of energy in the United States and the world. Readings and discussion range widely across different forms of energy: animal power, biomass, and early hydropower; coal, oil, and atomic energy; and present-day hydraulic fracturing, wind, and solar. Themes include relations between energy producers and communities, including resistance to energy projects; cultural and social change associated with dominant energy regimes; labor struggles and environmental transformations; the global quest for oil; and changing national energy policies. We explore new approaches to writing and teaching the history of energy.