The Great Gatsby is a novel written by F. Scott Fitzgerald. Set in the 1920s, the story follows Jay Gatsby, a mysterious millionaire, as he tries to win back the love of his life, Daisy Buchanan. Through Gatsby's pursuit of the American Dream, Fitzgerald explores themes of wealth, love, and the corruption of the upper class. The book offers a glimpse into the Jazz Age and the disillusionment of the post-World War I era.