The Second CELAM (Latin American Bishop`s Council) Conference held in Medellín, Colombia, in 1968, proved to be a movement of grace, not only for the church in Latin America and Caribbean, but also for the world church at large. Viewed as foundational for the reception of Vatican II, the evolution of liberation theologies and the emergence of diverse ecclesial movements committed to peace, justice and the integrity of creation, the grace of Medellín continues to be poured out upon the People of God, especially the poor, the powerless and the most vulnerable. Given the current realities of the church and world today, this new volume focuses on those grace-filled aspects of Medellín that warrant remembrance, recognition and reinvention, particularly within the context of the United States. This collaborative effort on the part of twenty theologians, social ethicists, and historians take account of the action of the Holy Spirit and the transformative power of Medellín in terms of its history, theology and legacy.