A quick search on "artist Jenny Holzer" turns up plenty of results, including a comprehensive Wikipedia page, an Artsy page, and quite a few others. A quick loo

A quick search on "artist Jenny Holzer" turns up plenty of results, including a comprehensive Wikipedia page, an Artsy page, and quite a few others. A quick look indicates that a fair amount of her work includes test based pieces, including this example: https://en.wikipedia.org/wiki/Jenny_Holzer#/media/File:Jenny_Holzer,_%22Xenon%22.jpg https://en.wikipedia.org/wiki/Jenny_Holzer#/media/File:Jenny...