In November 2012, voters in Colorado and Washington passed landmark measures to legalize the production and sale of cannabis for social use—a first in the United States and the world. Once vilified as a “gateway drug,” cannabis is now legal for medical use in eighteen states and Washington, DC. Yet the federal government refuses to acknowledge these broader societal shifts. 49.5 percent of all drug-related arrests involve the sale, manufacture, or possession of cannabis. In the first book to explore the new landscape of cannabis in the United States, investigative journalists Alyson Martin and Nushin Rashidian demonstrate how recent cultural and legal developments tie into cannabis’s complex history and thorny politics. Reporting from nearly every state with a medical cannabis law, Martin and Rashidian interview patients, growers, doctors, entrepreneurs, politicians, activists, and regulators. moves from the federal cannabis farm at the University of Mississippi to the headquarters of the ACLU to Oregon’s World Famous Cannabis Café. The result is a lucid account of how cannabis legalization is changing the lives of millions of Americans and easing the burden of the “war on drugs” both domestically and internationally.