While we can generalize when describing a given medium as hot or cool, all media can be said to possess both hot and cool aspects to varying degrees, and part of what I try to do with comics is figure out when and how the temperature needs raising or lowering.

I try to be as faithful as possible to the facts as I understand them, but any story is at least partly a product of the imagination. I can comprehend a lot by immersing myself in all of the information I've collected, but my imagination is what brings it to life, and the bridging of that gap - between the received history and the conceived fiction - is both the most difficult and most enjoyable part of the process for me.

At practically every level, the way I make comics is an act of improvising within structural boundaries. There's a rough plan, with a beginning, middle and an end, but how I get from one point to another is unknown at the outset, and a large part of what keeps me engaged. It's an exploration for me, and hopefully for the reader as well.

I care very much about all of my characters, recurring or not. I try to imagine something about that person beyond his or her physical appearance. After creating them, part of my job is to inhabit them and try to see their world from their perspective.

I'm not trying to create a stand-in or avatar with whom the reader can identify, but separate, believable characters with distinct personalities; I'm trying to place the reader more in the role of observer rather than that of participant. I think this approach comes out of my own personal desire and struggle to understand our world, and the complex interactions of people with one another and their environment. My work is an improvised exploration of this complexity, as opposed to a structured, plot-driven narrative.

It seems to me that any popular fictional character's appeal is idiosyncratic in nature. Characters with large followings - Sherlock Holmes, Harry Potter, the crew of the Starship Enterprise - seem to embody something very particular even as they speak to something within a huge number of people. When I think of the most time-tested examples, the common thread appears to be an author who feels deeply for what he is creating.

I personally have no need to make a strict definition of the medium. I am more interested in what can be done with comics than how it can be described, and if I want to remain truly open to the creative possibilities, the less I define the medium, the better.