This final thesis explores the growth and development of children through different developmental stages, with a special focus on emotional development and artistic expression. The impact of biological and environmental factors on development is considered, as well as the importance of individual differences among children. Artistic expression is recognized as an important tool for stimulating and understanding emotions in children of early and preschool age. The paper also provides guidelines for educators to create a stimulating environment that supports children's emotional development and artistic expression of emotions in early childhood. Artistic expression of emotions in children is an important aspect of their emotional development. Through drawings, painting and other forms of art, children can show their inner feelings, explore and understand their emotional reactions and communicate with the environment in a unique and personal way. At an early age, when children do not yet have fully developed verbal abilities, art becomes a key tool for emotional communication. The use of colors, shapes and lines allows children to express their emotional states, giving them freedom and creative space for self exploration and building confidence.