Howard Engel is an accomplished Canadian novelist. One day, he had a stroke and lost the ability to read — that is, his brain could no longer process text as a fixed reference. But Engel found that he could still write, even though, shortly after writing a piece of text, he was unable to read it. So Engel devised a way to use this remaining ability to regain his literacy. Cartoonist and animator Levni Yilmaz produced this video for National Public Radio explaining how Engel was able to do it.