This text aims to analyse accordion books in general and more specifically the collection of four accordion picturebooks titled “Desconcertina” [“Disconcerting”], published in Portugal between 2011 and 2015 by the designer André Letria. This article is divided into five parts and deals with a particular type of book object, namely accordion books. It starts by explaining the general format of an accordion picturebook and then goes on to discuss a selection of contemporary accordion picturebooks published between 2009 and 2016 in Europe and around the world. Finally, it presents a close reading of a Portuguese collection of accordion picturebooks by André Letria and discusses the importance of the materiality of accordion books in the promotion of interactivity in the reading process, challenging the readers’ competences.; Ovaj je rad usmjeren na analizu slikovnica oblika leporelo, osobito na nakladnički niz od četiriju takvih slikovnica dizajnera Andréa Letrije pod naslovom „Desconcertina“, objavljen u Portugalu u razdoblju od 2011. do 2015. godine. Članak je podijeljen na pet dijelova. Počinje načelnim objašnjenjem formata leporelo te potom razmatra izabrane primjere suvremenih leporelo-slikovnica objavljenih u Europi i širom svijeta od 2009. do 2016. godine. Konačno donosi detaljnu analizu portugalske zbirke leporelo-slikovnica Andréa Letrije te razmatra važnost materijalnosti toga formata za poticanje interaktivnosti procesa čitanja, pri čem potiče razvoj čitateljskih kompetencija.