The trilogy about Karlsson, who lives on the roof, was published for the first time in Swedish: Lillebror och Karlsson på taket. Stockholm, Rabén-Sjögren, 1955. Karlsson på taket flyger igen. Stockholm, Rabén-Sjögren, 1962. Karlsson på taket smyger igen. Stockholm, Rabén-Sjögren, 1968. The trilogy was first published in Russian translation by L. Lungina: The Kid and Carlson, who lives on the roof. - M.: Detgiz, 1957; Carlson, who lives on the roof, has arrived again // Lindgren A. Two stories about the Kid and Carlson. - M.: Detgiz, 1965. Carlson, who lives on the roof, plays pranks again // Lindgren A. Three stories about the Kid and Carlson. - M.: Children's literature, 1973. New translations of the trilogy into Russian (N. Belyakova and L. Braude) “Karlsson, who lives on the roof”, “Karlsson, who lives on the roof, flies again”, “Karlsson, who lives on the roof, returning secretly” was first published in the 4th volume of the Collected Works of Astrid Lindgren. - St. Petersburg, publishing house JSC "Athos" and "Library" Stars "", 1994. Translations were carried out according to similar Swedish publications of 1974, 1970, 1968.L. Braude