Tischler's talent for painting became apparent at an early age. At the age of fourteen, he received his first lessons from David Kohn. From 1907 to 1912 he studied at the Vienna Academy of Fine Arts under Bacher and Rumpler. Study trips took him to Holland, Italy and France. In 1918 Tischler was co-founder and president of the artists' association "Neue Vereinigung", from 1920 to 1938 he was a member of the Hagenbund. In 1928 he moved to Paris, staying until 1940. The years of 1940/41 he spent in the South of France, afterwards emigrating to the US, from where he returned to Cannes in 1949. In his early years, the French Impressionists - but above all Cézanne - had a formative influence on him, but Tischler was also interested in the works of Van Gogh or Kokoschka, and from 1923 also August Macke or Ernst Ludwig Kirchner. In the mid-1920s his paintings approached the "New Objectivity". Thematically Tischler preferred portraits, still lifes and genre paintings, later he mainly created landscapes and marine pieces from southern France, as well as views of old castles and parks. Despite all the stylistic influences, Tischler nevertheless succeeded in finding his own distinguished pictorial language.