Yo, why don't follow me on twitter? You would've learned about this sooner!
[ Follow me on twitter, I update there more general stuff significantly more often! ]
Anyway, that video series I did back in 2014 is now online for free viewing!
Check out [THIS POST ON MY TWITTER]
with the links to both the Google Drive and YouTube versions of the class videos! They were a big help to many people on Skillshare, and I hope they can help you out now while you're (likely) in quarantine.
The videos are still on Skillshare as well, where members can get access to student work and critiques from me providing additional insight into perspective and illustration process. But if you want a unique and direct way of thinking about perspective for illustration, watch on!