The career of Mikhail Bulgakov, the author of Master and Margarita — now regarded as one of the masterpieces of twentieth-century literature — was characterized by a constant and largely unsuccessful struggle against state censorship. This suppression did not only apply to his art: in 1926 his personal diary was seized by the authorities. From then on he confined his thoughts to letters to his friends and family, as well as to public figures such as Stalin and his fellow Soviet writer Gorky, while also encouraging his wife Yelena to keep a diary, with many entries influenced or even dictated by him.