Marcha is a multidisciplinary survey of the individuals, organizations, and institutions that have given shape and power to the contemporary immigrant rights movement in Chicago. A city with longstanding historic ties to immigrant activism, Chicago has been the scene of a precedent-setting immigrant rights mobilization in 2006 and subsequent mobilizations in 2007 and 2008. Positing Chicago as a microcosm of the immigrant rights movement on national level, these essays plumb an extraordinarily rich set of data regarding recent immigrant rights activities, defining the cause as not just a local quest for citizenship rights, but a panethnic, transnational movement. The result is a timely volume likely to provoke debate and advance the national conversation about immigration in innovative ways.