By using the non-visual incentives man is expressing his inner insights and his understandings of the world. In 20th century originated a movement in art called Expressionism in which artists attach their personal feelings to objective reality. This work under its title Non-visual incentive to graphical design describes how adults as well as children express their non-visual content visually. Thereby, this work is based on examples of works of art of children which, with their unrestrained freedom and imagination, discover the world. Through numerous researches which were triggered by non-visual contents – music, word, feeling and scent, last thought of this work leads to the conclusion that non-visual contents offer unexplored world of each individual. The author of this work, triggered by this last thought, has conducted qualitative research on the topic of graphic displays of feelings – joy and sorrow. Hypothesis set on the beginning of this work has proven to be accurate saying that colour has psychological effect and that each person who is triggered by some non-visual incentive has his inner world which (throug the work of art) physically becomes available to the general public.