The paper deals with a complex (psycho)therapeutic approach called art therapy. It is a method that relies on the use of creative media related to art as a means of expression and communication with the purpose of helping children and adults. Hence, art therapy is most often presented as an artistic-visual expression, although methods of expression through music, dance, poetry, and drama are often used in therapy. Creative therapy is a form of non-verbal expression of one's feelings, thoughts, and longings. An individual subjected to the therapy achieves cognitive and emotional awareness through the creative process and subsequently experiences an increase in one's quality of life. This paper aims to emphasize the importance of art therapy by researching the positive impacts of this type of therapy on the development of children and adults. The first chapters regard the detailed concept of art therapy, its history, principles, and multiple ways of working in art therapy and display of other creative therapies. Later, the focus shifts to children's art and art therapy itself with children. Drawing with children is a distinct chapter that explains the application of drawings for educational, diagnostic, and therapeutic purposes. Additionally, those children are the ones who have a wide array of disorders or problems (mental illness, intellectual disabilities, ADHD, autism, abused and hospitalized children). The paper concludes with the role of art therapy in education and the presentation activities examples in contemporary art therapy practice. Numerous activities, methods, and stages of children's development of artistic creativity are supported by examples and drawings.