Here is the work by David Rhoades
These notes are from SMX, an SEO conference in Seattle that took place June 12-14. These notes in particular were from a talk about how to spot and deal with Google algorithm updates. It's a little technical, but I find that using the visual cues and drawings helps me connect abstract events with physical ones--making them concrete in my head. It also keeps me engaged the entire time!
Here a couple more of David's sketchnotes.
Thank you for sharing with us David!