The first volume of the Collected Works of L. N. Tolstoy includes the writer’s early works of art - the trilogy “Childhood”, “Adolescence”, “Youth”. An amazing, poignant and lyrical trilogy, in which Leo Tolstoy invested many autobiographical motifs. The life of Nikolenka Irtenev, a boy from an aristocratic Russian family, passes before the reader day after day - children's games, relationships with friends, first love, the death of his mother, ridiculous and funny mistakes the first steps “in the world”, which seem fateful and tragic in youth. The hero of the trilogy grows up literally before our eyes - and we involuntarily experience his joys and sorrows, victories and defeats as our own. In the section “Unfinished. Sketches" unfinished excerpts "The History of Yesterday" and "Yuletide Night" are printed. The book’s text has been translated from the original language using an artificial intelligence system. In most cases, the translation is accurate and clear, but occasionally there may be incorrect phrasing or individual words left untranslated.