The picture book is the first book a child encounters literature. In the methodology of this final paper, special attention was paid to the literary-theoretical and comparative analysis of the texts and illustrations of Manuel Šumberc, and the aim of the analysis of illustrations is to compare his work with the contemporary Croatian picture book. This final paper analyzes authorial picture books by Manuel Šumberc Potraga (2019), Plavi cvijet (2020) and Vrlo zapetljan čvor (2021) and picture books by other authors illustrated by Manuel Šumberac as Pinokijeve pustolovine (2011), Snjeguljica (2012), Snježna kraljica: klasična priča Hansa Christiana Andersena (2013), The night before Christmas (2013), Baba Jaga i div Zaborav (2015), Jura i kuckalo protiv dosade (2017), Jura i gospođica Zavissst (2019) and Jura i upute za odrastanje: kako se postaje velik (2020). Text and illustrations are linked in picture books and affect the reader experience. The audience for whom the picture book is intended are children of early and preschool age who can experience the picture book differently. Analysis of picture books and illustrations leads to the overall picture as well as the possibility of discerning to whom the picture book is appropriate and in what situations to use them. The process of creating illustrations by Manuel Šumberc takes place within the circle of the illustration by which he moves during the illustration process. Due to the technique of creating illustrations and ways of displaying illustrations in picture books, it can be concluded that Manuel Šumberac is a modern Croatian illustrator.