I'm always jealous of folks who can draw/write effectively and beautifully. I'm dysgraphic, so even writing legibly on a whiteboard is not really an option for me; I mean, I can struggle through and make it legible if I take about five times as long as someone else would take, but even then the writing won't be beautiful, by any definition. Writing on the chalkboard in school was a real source of stress.<p>One of my favorite presentations ever was a description of public key encryption where the presenter used hand-drawn cartoons and drew some in real time. And, one of my favorite explainer videos is the Food is Free intro video, which is all hand-drawn by one of the founders of the project (who's also in the band BLXPLTN, among others; he's pretty good evidence that talent isn't evenly distributed): <a href="https://www.youtube.com/watch?v=KlC-4MgfICU" rel="nofollow">https://www.youtube.com/watch?v=KlC-4MgfICU</a>