Gustave Flaubert was a French novelist and a key figure in the Realist literary movement, best known for his meticulous style and exploration of the human condition. His most famous work, 'Madame Bovary,' is celebrated for its rich character development and detailed depiction of middle-class life, emphasizing the struggles and disillusionments faced by individuals in society. Flaubert's commitment to realism is characterized by his focus on everyday experiences and the use of precise language to convey deeper emotional truths.