Video (optional): Data Sketches

Sketching is often used as part of the data visualization process. For some inspiration, check out this amazing series of process posts by Nadieh Bremer and Shirley Wu: Data Sketches Links to an external site.. Here's a conference presentation where they discuss some of their process/methods around sketching (optional to watch the whole thing, but quite interesting).

The discussion about sketching starts at 8:20.