"Saint-Beuve and his unknowns" by A. J. Pons is a fundamental biography of the outstanding French literary critic Charles-Augustin Saint-Beuve, which reveals various aspects of his life and activity, and explores the influence he had on the literary scene of the 19th century. The author covers in detail the most important moments from the life of Saint-Beau, reveals his communication with other great literary figures of his time. This book is a must for all fans of literature and anyone interested in the history of French literature of the 19th century.