The Peruvian Mario Vargas Llosa has been acclaimed throughout the literary world as one of Latin America’s finest writers, yet until recently little has been written about his work in English. While his work has the subject of an increasing flow of critical commentary in Spanish and his major novels have been translated into English, this is the first full-scale critical treatment of Vargas Llosa published in the English language. These articles by a number of established writers and critics appraise Vargas Llosa’s individual novels as well as the body of his work. The Time of the Hero, The Green House, Conversation in The Cathedral, and Pantaleón y las visitadoras are examined in order of publication. A second group of more general essays ranges across Vargas Llosa’s work and explores pervasive themes and concerns. Two pieces by José Miguel Oviedo serve as a coda. In a bilingual interview, Oviedo and Vargas Llosa discuss Vargas Llosa’s novel La tía Julia y el escribidor. Oviedo concludes with a critical discussion of that novel. A Vargas Llosa chronology compiled by the editors is also included. Most of these essays originally appeared in 1977 as a special issue of Texas Studies in Literature and Language. The concluding essay by Oviedo was prepared especially for this edition.