I am just such not a graphic artist-type person. I can't draw a straight line without assistance and any time I try to do a sketch it winds up looking like someone tied an ink pen to an epileptic budgie and let it loose.
That's actually why the graphic content of these pages is so minimal although if anyone asks I'll just tell them it's a conscious attempt to make the reader question whether a picture is really worth a thousand words or is that just hype. I suck as an artist. Really, I'm not kidding. But if I absolutely, positively have to do some drawing, I use the GIMP
It's fast. It's flexible. It's expandable, and it's free. It's multi-platform, open source and even I can figure out how to make it work.
