More recently I have come across a fabulous artist on instagram that wrote a book about drawing your day. Now technically she focuses on watercolor and line art, but I really like the idea of doing something similar to help increase your visual vocabulary.
Last summer I did a day in the life following a prompt from Karin Perry who also wrote a book about Sketchnoting in School. Scroll to the bottom of the post to see that sketchnote.
Click below to see Samantha's Instagram profile, her images are beautiful and a great source of information.