This book explores, through a multidisciplinary approach, the immense influence exerted by Bernard Shaw on the Spanish-speaking world on both sides of the Atlantic. This collection of essays encompasses the reception and dissemination of his ideas; the translation of his works into Spanish; the performance history of his plays in Spain and Latin America; and Shaw's influence on many key figures of literature in Spanish. It begins by delving into Shaw's knowledge of Spanish literature and gauging his acquaintance with the Spanish cultural milieu throughout his tenure as an art, music, and theatre critic. His early exposure to Spanish-speaking culture later made the return trip in the form of profuse critical reception and theatrical success in countries like Spain, Argentina, Mexico, and Uruguay. This allows for a more detailed investigation into the unmistakable mark that Bernard Shaw left in the oeuvre of leading Spanish-speaking authors like Ramiro de Maeztu, Jorge Luis Borges or Nemesio Canales. This volume also assesses the translations of Shaw's works into Spanish-while also providing a detailed publication history of these translations.