Since I don't know how to draw, but I know how to read, I am reading this drawing book, Drawing on the Right Side of the Brain by Betty Edwards (Amazon link: https://www.amazon.com/dp/1585429201). My wife gave me a copy of the workbook, which she picked up used from the local Half Price Books. It had never been used. The first exercise is to sit in front of a mirror and draw a pre-instruction self-portrait. On paper! So I did, but I also took a picture of it and then did my iPad thing on it. I like that in the exercise, the last step was, "When you have finished, date and sign your drawing."