By design, the all-white nature of the panels made them difficult to read. So, visitors often needed to spend time squinting or navigating their own body in order to better read the text or see the image. “Sometimes,” says Hirshbein, “visitors intuited that. They would say things like: ‘Oh, this is difficult to read,’ and then look at me and go: ‘Oh, because it’s difficult material.’”
Continue reading at The Smithsonian Magazine