The writings of F. Scott Fitzgerald predominantly revolved around the themes of wealth, decadence, and the American Dream during the Jazz Age. His characters often grappled with the moral complexities of their opulent lifestyles and the disillusionment that accompanied their pursuits of happiness. Fitzgerald's exploration of the Roaring Twenties revealed both the allure and emptiness of wealth, as seen in works like "The Great Gatsby," where obsession with status leads to tragedy. His prose captured the societal changes of the time, reflecting the stark contrasts between glamour and despair, and contributing to our understanding of early 20th-century America.