From 1895, he was a vocational teacher, and professor of painting and drawing at the Academy of Fine Arts, Zagreb where he worked for the rest of his life.

[1] While he was still studying in Vienna, Tišov received a commission to paint four allegorical works on the ceiling of the Golden Hall in Zagreb, under the titles of worship, theology, art and science.

[2] He spent a year (1913–1914), training in Paris at the Académie Julian, to prepare for making decorations in the University Library in Zagreb.

Ivan Tišov's paintings of worship, theology, art and science decorate the ceilings in the Croatian Institute of History in Zagreb.

Although largely in the shadow of the other greats of Croatian art at the time (primarily Vlaho Bukovac, his work has an essentially timeless quality.