She has a quote online about what visual poetry that I have to share with you:
(Helen White) read that visual poems can't be quoted. That a poem you can quote, you can learn by heart, has an intimacy a visual poem will never achieve. Silly vispo, how defective. How uncontrollably physical of it. Like stupid, stupid music you can't grab hold of, stupid dance you can't write down. I dream of making poems you can't possess, can't appropriate, can't get over. They'll choose their intimacies as it suits them.
(image above: performance by Helen White at Signal, Malmö Dec. 17th)