The thesis "J. S. Bach and His Piano Pieces for Music Art Schools" is focused on interpretation of the piano music of Johann Sebastian Bach. For the right understanding of the composer's musical narratives, it is necessary to acquire the basic knowledge and principles of the music theory in the Baroque era and to become familiar with the environment in which this extraordinary composer had been professionally developing and composing. This musician is presented here as the founder of a modern fingering whose musical language brought a change into musical thinking and he became inspiration and a role model for composers of the next centuries. This thesis highlights the importance of appropriately selected musical materials in piano teaching and it prefers the performance to be as authentic as possible. The main purpose of this paper is to update the knowledge of methodology and to find a comprehensive guide to a correct understanding of musical language of this genius that would help the music teachers introduce to pupils the beauty and timelessness of Bach's musical work and that would motivate them to other musical discoveries and make them desire to be further educated in music.