Post – impressionism, as an artistic direction, apeared as a reaction to impressionism. This direction has developed in the most intensive way during the end of the 19. century and is reffering to painting. The title of post – impressionism was given by an english art critic by the name of Roger Fry, who first used it with the attempt of establishing a new direction in art where artists reject realism and make their own estetic (Penelope and co., 2007). By observing stylistic figures post – impressionists have relied on color as the strongest tool for transmision, of emotional, symbolic and estetic meaning of the work (Brettel, 1999). As the foundational element of painting, it gains a subjective meaning in post – impressionism. We can define colour as a reaction of photosensitive cones in our eye to a light stimulus (Jakubin, 1989). Relationship between colour and man is visible based on the foundation of the very definition of colour. Colours react differently to every man, and as a result of that different interpretations of the colour symbolics appear. Colour symbolic relies on every colour having a specific meaning. Every man can determine colours in a specific way, given that he is in a relationship with colours, and through paintings. As post – impressionism is the very direction where the artists subjective or individual aproach is highlighted, post – impressionist works are an ideal base for determing expression and colour symbolics. Therefore, determing the expression and colour symbolics in the works of post – impressionists as encouragement for artistic expression and its application in art class. This work is divided in two parts. In the first part which is theoretical, data from the available literature have been gathered and processed in a descriptive method in the form of a graduate degree essey. In the second part which is practical, a researches have been done in a period of two school classes in which the goal was to applicate the expression theme and colour symbolics in the works of post – impressionists in an art class as an encouragement for the students artistic expression. It is the very artwork of the students that were the tehnique and the instrument for gathering research data.