Ran Bosilek, pseudonym of Gencho Negentsov (1986 - 1958), is one of the most famous and most productive Bulgarian children's writers, who has left in our literature unforgettable works such as "Patilan Kingdom", "Unborn Maiden", "Sisters of Max and Moritz ”and others. In addition to being a writer, Ran Bosilek is an experienced editor, talented translator and publisher who dedicates all his creative work to children. His works have been translated into many languages: French, English, Russian, Czech, Polish, Arabic.