Every child is born with innate need for artistic expression. Child’s art activities can tell a lot about cognitive and motor development as well as the emotional state of the child. Process of artistic expression consists of visual cognition that interprets images from the environment and artistic cognition that expresses the image of the environment as seen by the author. Children’s artistic expression develops in four distinct stages. The stages are the stage of expression using primary symbols, the stage of expression using complex symbols, the stage of intellectual realism and the stage of visual realism. The stages are determined by psychomotor and cognitive ability and they are universal for all children. Children’s imagination plays an important role in children’s play and artistic expression. A child uses imagination to express novel ideas by combining existing elements or to solve problems by putting known elements in new relations. Besides artistic expression, children’s imagination is also often expressed in symbolic play. It is possible to positively influence children’s creativity by correctly encouraging children’s artistic expression. Important ways to encourage children’s artistic expression are perception focusing, memory activation, imagination, free play with materials and confirmation of the value of children’s art. Development of creativity is important for children's development, but also for the development of the society as a whole. The best way to develop artistic expression is to engage in artistic expression. Three art activities were carried out in the preschool with the goal of enabling children’s expression prompted by imagination. The first activity was drawing the imagined end of the story from the picture book “The Power of Henry’s Imagination”. The second activity was painting an unusual situation prompted by a short motivation. The third activity was spatial-plastic modeling of an unusual machine. Activities were carried out in the Cvrčak kindergarten in Čakovec in groups of children ages six to seven. Children were given the opportunity to freely and creatively express themselves in art activities prompted by imagination. Children had the opportunity to express their feelings, experiences and knowledge by drawing, painting and building.