As a person, I'm technical and perfectionistic. If I'm interested in something, I want to know everything possible about it. So at the end of this exercise (will it ever end?) I want to compartmentalise everything in drawing into topics, which all link to the greater whole. I want to understand drawing as a science, not as a mish-mash of scattered and unrelated data (read: artsy-fartsy nonsense). My skillz in drawing are not where they should be, and so I want this exercise to double-up as a primer in draughtmanship. It's difficult to practice when you're not sure where to start, and demoralising when you're not sure that what you think you know is right.
It's a very broad subject and so the challenge would be to try to group all the info into related topics. Of course, being interested in drawing for quite a while now, I have accumulated a lot of info on it in the form of PDFs and physical books over many months. There's a folder on my PC with a whole lot of historical drawings and paintings, and it also has other types of design work across a broad range of disciplines. This obviously doesn't mean that my groupings include all that there is to know about drawing, and so I'll be looking forward to adding to that knowledge base. There are lots of little things in drawing which you can only pick up by close observation and experience.
Spiritually, drawing connects a person to their subconscious and allows them to have a closer understanding of the natural world. Mentally, it works the right-side of the brain and broadens a person's creative capabilities; in essence, it opens the mind. When I draw, it isn't always emotional, but this depends on when I choose to do it, how I do it and for what reason. In times of stress, it's therapeutic; in boredom, exciting. The physical activity of drawing improves eyesight and hand-eye coordination. It also relaxes the muscles and helps with sitting still.
I'll start off with the history of drawing, since it's the most logical first step. Perhaps I can then branch off into elements/principles, but I'll see once I get there. Below is a mind-map of the topics I could think up for drawing; it's obviously not complete, but it lists the main topical groups.
Image source: Daily Mail