Never read him in Slovene, only knew of him through the book world pages, but Slovene PEN's line stays with me: a writer with "a sharp, critical pen, often seasoned with humour." That's the whole obituary really.
Their story
Slavko Pregl was a Slovene writer, editor and publisher who became one of the classic authors of modern Slovene children's and youth literature. His humorous, realistic stories about city children and teenagers, beginning with Odprava zelenega zmaja (The Expedition of the Green Dragon), were read by generations of Slovene schoolchildren,…
Slavko Pregl was a Slovene writer, editor and publisher who became one of the classic authors of modern Slovene children's and youth literature. His humorous, realistic stories about city children and teenagers, beginning with Odprava zelenega zmaja (The Expedition of the Green Dragon), were read by generations of Slovene schoolchildren, and he spent decades shaping the country's book world as a publisher and the first director of the Slovenian Book Agency.
Vekoslav Pregl was born in Ljubljana on 9 September 1945 and went to primary school and grammar school in Šentvid, where he edited the school magazine and began writing humorous sketches and satire. While studying at the Faculty of Economics of the University of Ljubljana, from which he graduated in 1972, he sat on the editorial board of Tribuna and wrote for Mladina and the satirical paper Pavliha. He was editor in chief of Mladina when it won the Tomšič Prize for journalism in 1970.
From 1969 to 1991 he worked at the publisher Mladinska knjiga, where he ran its international co-production unit, and from 1991 to 2002 he ran his own publishing house, EWO. He later wrote with self irony about how that venture failed. He was president of the Slovene Publishers' Association, the Reading Badge Society and the Slovene Writers' Association, chaired the National Council for Culture, and in 2009 became the first director of the Slovenian Book Agency, serving until his retirement in 2012.
Pregl wrote more than fifty books, mostly for children and young people, translated into fifteen languages. Odprava zelenega zmaja (1976) and Geniji v kratkih hlačah (Geniuses in Short Pants) were both adapted for television, and other well known titles include Priročnik za klatenje, Srebro iz modre špilje and Usodni telefon. His honours included the Levstik Award, the Večernica, the Desetnica, the Župančič Award, the Schwentner Award and the Levstik Award for lifetime achievement, and in 2017 the President of Slovenia awarded him the Order of Merit.
He died on 10 August 2026, aged 80, and was buried at Žale cemetery in Ljubljana. Slovene PEN said his sharp, critical pen, often seasoned with humour, had fought tirelessly for freedom of expression and for the place of writers and books in Slovene society.
Biography adapted from Wikipedia (CC BY-SA 4.0, English and Slovene) and reports (RTV Slovenija, Delo, Dnevnik, Društvo Bralna značka Slovenije). Wikipedia ↗

Good one to pick out. He'd have liked being remembered for the pen first.