A few weeks ago I had the pleasure of giving a talk at the University of Toronto about my theories of visual language hosted by the Knowledge Media Design Institute. They have now posted this talk online to be viewed in full (beware, it's quite long) on their website.
If anyone is really interested in just what my theory entails overall, this is definitely worth watching. It lays out the basic principles and issues for what exactly I mean by "visual language", and how that relates to "comics", "language", "art", etc.
Note: Be forewarned that the slides they show do not have their full proper animations, so might end up looking a bit more cluttered than is intended.