By now, you know that David Rakoff, a prizewinning humorist championed by David Sedaris, died Thursday night after two public battles with cancer. Rakoff cultivated a following among listeners of This American Life, the beloved radio show hosted by Ira Glass. In May, he made one of his last appearances on the show when TAL presented “The Invisible Made Visible,” a live stage performance beamed to movie theaters nationwide. Here, Rakoff reads the story, “Stiff as a Board, Light as a Feather,” about “the invisible processes that can happen inside our bodies…and the visible effects they eventually have.” You won’t want to his miss his poignant last dance. It’s yet another reminder of why he’ll be sorely missed. We’d also recommend spending time with his appearances on NPR’s Fresh Air.