I published one section of my undergraduate thesis as "Picture Performance: A History from Power Point to Cave Painting." Click here to see the full text.
In the essay I reveal histories of wandering oral storytellers whose version of events runs counter to those told by people in power. They told their stories by pointing at pictures while singing or speaking, using this combined visual and oral evidence to sway their audiences.
Examples here include a Moritadasenger c. 1700, Wayang Beber c. 1900, Cantastoria and Al Gore, both c. 2000s.