I rarely take pictures of sketches as they're progressing, mostly because I can never remember to, but also because I don't like to stop working to take a photo. However, long-term projects like the Main Street Bozeman sketchbook or the San Antonio panorama are easier to document as they progress, and I have scanned a few in progress before. But I also recently documented the step-by-step process of a few drawings in the field for a project by a fellow sketcher that I'm contributing to. Here's a set of steps I think I can share: The location to be sketched. In this case, as with many other larger sketches, I used a pencil first before going in with a pen. I start with a few basic lines that establish the overall shape of the composition. These lines will serve as a rough guide for the curved perspective I plan to use in the drawing. After that, basic shapes are blocked in, as well as the location of certain foreground elements, like trees. I ...