In the final paper "Art therapy in work with children of preschool age" the concept of art therapy itself is explained. The concept of art therapy is very important to define, and by definition it belongs to art therapy, where the goal is a therapeutic effect on a person. The beginnings of art therapy go back to ancient times, when people believed that through pictures, stories, song and dance, they would expel negative energy from the body. Many therapists who are important in art therapy are mentioned, and some of them are the artist Adrian Hill and one of his followers Edward Adamson, then the psychologist and psychiatrist Carl Gustav Jung, the psychologist Margaret Naumburg and the Croatian psychiatrist Branko Pražić. Models that help in understanding and evaluating the way of using different elements of art in therapy are listed and explained: the continuous expression model consisting of four levels, the representation model and the creative axis model consisting of six stages. Then it is discussed about the ways of group work in art therapy, about the types of application of art therapy, that is, about different media in working with children, the stages of artistic development in different age periods of children are explained. Children's drawing and its importance in the child's life and art therapy are mentioned, and the symbolism of colors in children's drawing and what each color represents is explained. The entire process of art therapy is confidential and nothing may be exhibited or shown without permission. At the end of the paper, the importance and connection of creativity with art therapy is explained.