ASCII-graffiti by Goto80. Full video here.
In the 1960s, Eduardo Joselevich and Fanny Fingerman developed a technique to represent images with only four symbols. Full blocks or circles, in either black or white. They called it Fototrama and it was used at Olivetti and Philips for example.
In the 1870′s, Brooklyn Furniture Company spent more on ads than any other furniture company. And they did plenty of text graphics!
More in this ASCII-detective story.