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Your search for Who wrote Understanding Comics: The Invisible Art returned the following results:

Scott McCloud

Scott McCloud, in a List's groundbreaking work Understanding Comics: The Invisible Art, refers to graphic fiction (a catch all term for pictorial representations that tell stories such as comic books and graphic novels) as “Juxtaposed pictorial and other images in deliberate sequence, intended to convey information and/or to produce an aesthetic response in the viewer” (17).