An analysis of Yi’s works by Jae-Bok Lee suggested that they encompassed several genres some of which include: “artists novels” (e.g. "The Poet", "The Golden Phoenix" and "Bisson"), historical depictions (e.g. "Age of Heroes" and "Border"), romantic love stories (e.g. "Lette’s Song" and "All That Falls Has Wings"), characterizations of political views unconsciously internalized in Korean society, especially men in Korea, (e.g. "Choice"), and, in Jae-Bok Lee view, an excessively political novel, "Homo Ececutans". One of Yi's best selling novels "Son of Man" (approximately 2 million copies sold) is simultaneously a detective story and a treatise of his views on Jewish and Christian ideologies derived from a study of comparative religion and mythology. "Hail to the Emperor" combines a farce with a realistic depiction of the suffering of the Korean people during the Japanese occupation and the Korean War. Ji-moon Suh, translator of many of his works, stated that Yi is a master of all fictional forms. He provided short descriptions of a wide selection of Yi's works that support this assertion.