_Thomas Merton: Social Critic_ organizes and critically analyzes the social thought of the Cistercian monk who has become an internationally known symbol of the spiritual element in man. The author evaluated all of Merton's writings, published and unpublished, then discussed his interpretations with Merton personally. The result is a perceptive relation of Merton's social thought to its genesis in his own life experiences and contemplation, a faithful rendering of Merton's thought on the problems of our time. Merton, the author makes clear, called for a spiritual, social, and religious union. It was a poetic and sometimes unimplemented solution to alienation and division, a valid and authentic, if at times limited, response to the contemporary chaos. This study will be greeted by a strong reaction from Mertonians everywhere.