Andrew O'Hagan is a renowned Scottish novelist and essayist, widely recognized for his debut work "The Missing" and subsequent works such as "Our Fathers," "Personality," and "Close to Me. His work 'Mayfly' explores identity issues across different eras, reflecting the tension between 'poor language' and high literature in Scottish literature. O'Hagan showed a strong interest in the role of writers as the "voice of democracy," believing that the goal of modern literature is to praise the "roughness" of Scottish language on a global scale.