UPO / Unidentified Paper Object is a bilingual printed matter (FR/EN). It’s an occasional publication that is aimed at emphasizing the work of an artist chosen by Éditions Non Standard. Its format remains the same but paper(s), printing technique and binding varies from one issue to another.

UPO4: Reading The Sky shows paintings by Aino-Maija Metsola, together with stanzas written “on site” by Daniel de Roulet, translated into English by Pierre Rusch. Rejane Dal Bello is the designer of UPO 4. She has shaped it as a type specimen.