Miguel de Cervantes Saavedra was a Spanish writer, poet, and playwright who is best known for his novel "Don Quixote." He is considered one of the greatest writers in the Spanish language and his work has had a significant impact on literature and culture. Cervantes is often referred to as the "father of the modern novel" and his writing style and storytelling techniques have influenced countless authors around the world. His most famous work, "Don Quixote," is a classic of Western literature and has been translated into numerous languages. Cervantes' contributions to literature have earned him a lasting legacy as one of the most important figures in Spanish and world literature.