The picture book is the first book that a child encounters in his life, it unites the art of words and illustrations. Although, there are no age limits for enjoying a picture book, it is most often created for children. The picture book is interesting to children because they interpret it based on her illustrations. The fundamental question then is the quality of picture books and the importance of illustration in picture books. In direct work with children, I come across a variety of picture books, from tactile, comic picture books, audio-visual, reading picture books to interactive picture books and various others. The question arises as to the importance of illustration in a picture book precisely because of the child's independent experience of the picture book and stiles of the illustration will show him the action in the right way. The first part of the paper explains the concept of picture books, how the picture book has been built and presented to children throughout history, which are the first topics of the picture book. The first part explains the division of picture books according to the form, age of the child, according to the way of presenting the content, the picture book with regard to art technique as well as the functions that the picture book provides. The textbook intertwines text and illustration at the same time. That is why it is very important to mention the importance of illustration in picture books, as well as its history of how it was adapted to readers. The authors of the illustration are professional in their work, it is important to mention the styles of illustrations in children's picture books as well as children's illustration. The second part of the diploma thesis consists of the practical part of conducting direct activities with children and illustrating the story with children's works. After the story has been solved, the children determine which part of the story is most interesting to them, and in this way they each create a part of the illustration. Children's works will be edited with the help of various online photo editors. The final product of the implementation of direct activities in the children's group will be the creation of their own illustrations to the offered story.