[C]artoon as text, as a cultural artefact which is neither a passive reflector or reality, nor passively received by readers. In this light a critical historical reading of a cartoon, or a body of cartoons, must look to understand the conditions both of its making and of its reception. […] Reading this source may also require some appreciation of its technological possibilities and limitations.
Scully, R. and M. Quartly (2009). Using cartoons as historical evidence. Drawing the Line. R. Scully and M. Quartly. Melbourne, Monash University ePress: 1.01-1.13.