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Blue Etudes is a collection of prose works by Mykola Khvylyovho that was published in 1923. Its appearance in 1923 was perceived by the most authoritative critics of the time as an innovative and significant phenomenon. The novelist's novels attracted not only with their thematic topicality but also with their stylistic and artistic originality, and testified to the establishment of a new style of writing. Khvylovy initiated the romantic trend in literature and became an innovator in Ukrainian prose.