The solemn opening of the Slovenian Book Days festival will encompass introductory speeches and the missive to celebrate World Book Day, and two exhibition openings: a book exhibition by Borut Gombač and an exhibition of graphic art made out of books by renowned American artist Brian Dettmer. The opening will be accompanied by the performance of Boštjan Narat and his band (Boštjan Narat, voice, guitar; Matevž Kolenc, guitar, bass, arrangements; Polona Janežič, piano, keyboard; Jelena Ždrale, violin; Blaž Celarec, percussion).