Jama studied painting in Zagreb and Munich. He travelled most extensively of all Slovenian Impressionists − for some time he travelled with a cart and painted in German, Austrian and Netherlandish villages. When he settled in Ljubljana he often went to Bled, Volčji Potok, Bela krajina and the valley of the River Kolpa to paint there. In his oeuvre and in his beliefs he always stuck to Impressionist principles; he studied visual perception of reality. He mainly painted landscapes and vedute, which demonstrate his steady brushwork and colouring infused with light.