Kajuh started writing poems before World War II. He began publishing his poems in the literary magazine for youth Slovenska mladina (Slovene Youth), edited by his friend Dušan Pirjevec. Some of his best poems from this period with social, political, and love themes were published in this journal: "Otrok slovenski" (Slovene Child), "Slutnja" (Premonition), "Norec" (Madman), "Pesem delavca o svoji ljubici" (A Worker's Poem on His Beloved), "Vseh mrtvih dan" (Day of All the Dead), "Otrokovo pismo Jezuščku" (A Child's Letter to Jesus), "Novoletni sonet" (A New Year's Sonnet), "Kmečki otrok vprašuje" (The Question of the Peasant's Child), "Moj stric" (My Uncle), and so on. Kajuh was also a prolific translator. Especially noteworthy are his translations from Czech, particularly of the authors Jiří Wolker, František Halas, Ivan Olbracht, and Jaroslav Seifert.
