Phil Berneburg
Some have passed on but left treasures behind. I never met Phil Berneburg. But recently I stumbled across a wonderful video explaining pyrometric cones, which led me to The Potters' Round Table. Almost 100 excellent videos of Phil explaining all aspects of ceramics, including gems like "Pottery Figurin' (Math for Potters)".
I'll link some of Phil's lectures in Glazy's Help website.
For now, I hope you will visit @washingtonstreetstudios Youtube channel:
https://www.youtube.com/c/WashingtonStreetStudios/videos
Rest in peace, Phil. And thank you.