What painter created a series in the late 1940s called Little Images: grid-like structures filled with markings that look like symbols or letters, none larger than three feet?

What celebrated Pop artist gravitated toward what he would characterize as the “dumbest” or “worst” visual item he could find, and then go on to alter or improve it?

Answers here~ https://schristywolfe.com/2015/10/27/october-27/