The topic of my final thesis is art in picture books for preschool children. From a young age, children browse and study picture books, even though they cannot read them, children are interested in pictures in picture books. This final thesis consists of two parts, theoretical and practical. In the first part of the paper, the picture book is defined and the first Croatian picture book is described. The division of picture books and their functions are also described. A picture book is not important to children only because of the text, the pictures in the picture book play an important role, and that is why this paper defines art in picture books, it also describes how to teach children art and how to teach them the elements of a work of art in picture books. In the second, practical part of this work, an art activity that was carried out in a kindergarten is presented. The activity was carried out with children from 4 to 7 years old. The motivation for the activity was a picture book that was described in detail before the art activity, the process of art creation itself, and at the end some children's works that stood out were analyzed. I assume that the art in the picture book will affect the appearance of the children's works. In the conclusion of the final paper, I will state whether my hypothesis was correct and what the results of this artistic activity are.