This book is the culmination of the process of rewriting a critical history of Costa Rican literature, which Álvaro Quesada Soto began in the eighties of the last century, and the premature death of this remarkable researcher, at the beginning of 2001, unfortunately, The first three chapters of the volume correspond to the studies he devoted to the novel of the 40. In the fourth chapter, his analyzes on the dramaturgy and the Costa Rican theater have been gathered, including a work written in collaboration with Eugenia Chaverri , Who was his wife.