Kim Il-sung's personal works are considered "classical masterpieces" while the ones created under his instruction are labeled "models of ''Juche'' literature". These include ''The Fate of a Self-Defense Corps Man'', ''The Song of Korea'' and ''Immortal History'', a series of historical novels depicting the suffering of Koreans under Japanese occupation. More than four million literary works were published between the 1980s and the early 2000s, but almost all of them belong to a narrow variety of political genres like "army-first revolutionary literature".