Kunstpädagogik
1876 – shortly after he took office as a municipal inspector of art education and after the beginning of his work as an art teacher at the Petrischule in Leipzig – Flinzer summarized his accumulated practical knowledge in his textbook called "Lehrbuch des Zeichenunterrichts" (Bielefeld/Leipzig 1876). This work made him known also in other European countries and in America. Because of his textbook Flinzer was referred as a forerunner of the so-called "Kunsterziehungsbewegung" (Art education movement), part of the Progressive education movement. Flinzer joined issues with the leading representatives of this movement. In consequence of the "Kunsterziehungsbewegung" his influence waned.