This is an annotated bilingual edition of Antonio Machado's letters to Pilar de Valderrama. Their correspondence covers a range of topics and reveals Machado's profound love for his secret muse. This annotated bilingual edition of Antonio Machado's letters to Pilar de Valderrama, which includes an informative introduction, offers a unique insight into the poet's personal and artistic life. The letters - intimate, vibrant, and as unguarded as journal entries - cover a range of topics. They reveal his profound love for a woman he worshiped of his goddess and to whom he confided his innermost thoughts. The letters permit a glimpse into Machado's creative process, aesthetic principles, and political views. During the nearly ten-year span of their correspondence, Machado shared with Valderrama his opinions about literary gatherings, contemporary authors, and the unrest of the pre-Civil War days. While lamenting that his work as a high school French teacher limited the time he could devote to his creative endeavors, he consistently consulted Valderrama about them, even transcribing lengthy excerpts from his plays in progress.