Latin America possesses an enormously rich constitutional history, one that has only recently become the subject of scholarly inquiry. As noted legal theorist Roberto Gargarella contends, contemporary constitutional and political theory has a great deal to learn from this history, as Latin American constitutionalism has endured unique challenges that have not appeared in other regions. Such challenges include the emergence of egalitarian constitutions in inegalitarian contexts; deliberation over the value of importing foreign legal instruments; a long-standing exercise of socio-economic rights; issues of multiculturalism and indigenous rights; and substantial experience with unbalanced versions of the system of checks and balances. Moreover, Latin American nations have endured numerous and frequent constitutional changes over the past two centuries. In this landmark book, Gargarella provides a broadly comparative history of Latin American constitutionalism, informed by constitutional theory. He organizes the book across four major historical periods of Latin American legal history, infusing this history with a discussion of the ideas of thinkers including Juan Bautista Alberdi, Francisco Bilbao, Simon Bolivar; Juan Egana, Jose Gonzalez Vigil, Victorino Lastarria, Juan Carlos Mariategui, Juan Montalvo, Jose Maria Mora, Mariano Otero, Manuel Murillo Toro, Jose Maria Samper and Domingo Sarmiento. Written by one of the leading scholars in the field, this book is truly a milestone in the study of Latin American constitutionalism.