"Letters to the Indifferent" is a collection of letters written by the French poet and writer Adolphe Rette. In his works, he opened for the reader a new form of literary genre for the first time - letters to an imaginary addressee, which is a symbol of indifference to life and art. In each letter, the author pours out his thoughts, feelings, memories and philosophical reflections on the nature of man, his place in the world and social aspects of life. The world of deep emotions and emotional experiences opens up to the reader, which makes this book an important work of French literature of the beginning of the 20th century.