Gaja Kos (1979) is actively engaged in various roles with children’s and YA literature which she studied in Ljubljana. She works as a literary critic and has been publishing literature reviews in key printed and web media in Slovenia for over two decades. She also works as an editor for original Slovene books for children and young adults at Miš Publishing, at LUD Literatura she co-edits the collection of translated short prose Stopinje (Footprints), and she translates from English. She publishes professional and scientific articles about youth literature and lectures about it at symposia and conferences. As a writer she creates for children and is author of a board book, eight picture books, and three illustrated books. Her picture book Ne pozabi na naslov! (Don't Forget the Title) (Miš, 2022) was included in the White Ravens Catalogue. Notable among her recent works are also Obisk (The Visit) (Mladinska knjiga, 2019) and Nočni obisk (Night Visit) (Mladinska knjiga, 2022). She is a member of the programme committee of Slovenia's Reading Badge Society, a member of the executive board of the Slovene Literary Critics’ Association, a member of the supervisory board of the Slovene section of IBBY, and a member of the Slovene Writers' Association.