Arsène Lupin is a fictional gentleman thief and master of disguise created by French author Maurice Leblanc. First appearing in 1905, Lupin is known for his clever heists and ability to outsmart the police, particularly his nemesis, Inspector Ganimard. The character embodies charm, wit, and a sense of justice, often stealing from the rich to help the less fortunate. Lupin's adventures span numerous short stories and novels, making him a popular figure in French literature. His character has inspired various adaptations in film, television, and theater, solidifying his status as an iconic figure in the genre of detective fiction.