At the beginning of the 20th century, regionalism gained an important role in literature. Regional literature is an important part of Croatian literature because regional peculiarities enrich national literature and are also the basis for creating diversity in culture. Regionality in Croatian children's literature can be seen in all literary genres, so the picture book has found its place in this area. Regional picture books are gaining special importance nowadays. In this Master's thesis the emphasis is placed on picture books of regional themes from the area of Zadar County. Through the Master's thesis, an analysis of 27 picture books of various regional topics with a characteristic typology was given. Picture books related to Zadar's cultural treasures, oral heritage and natural beauties of Zadar County were presented. Their regional specifics in the thematic, linguistic work, the choice of motifs or the theme itself can be found. The first part of the thesis presents the main features, a brief historical overview, the educational importance of the picture book and its pictorial and textual components. Furthermore, the second part of the thesis presents Croatian regional children's literature with special emphasis on regional picture books, which introduces us to further chapters in which picture books on regional topics are processed and analyzed. After analyzing all the picture books, the final part of the thesis lists the similarities and differences in their design.