This weekend, Campbell is participating in a panel on "Social Issues Through Comics." He sees the image-oriented nature of comics as an especially powerful tool for social change: "I think comics, as a primarily visual medium, can add a new perspective to any given topic," he says. "It's that old cliche that a picture is worth a thousand words, right? Sometimes, the image just touches a person more viscerally than words can. People can turn off, shut down, if they're feeling preached to too much. But it's hard to turn off to an image, you know? It can touch you or hit you whether you want it to or not. Why not use that power for good? For social issues that you care about?"