So far, the depth and actionable detail has been very stimulating and challenging to absorb. I feel like I need to be taking notes. It is grounded in narrative theory and cognitive psychology (including references) and focuses on why problems occur and how to apply the underlying psychological principles within TTRPGs. Definately not a 'light read', but feels particularly empowering for my proactive game. This video on speeding up combat, or this one on this one on making NPCs feel alive might be good places to start.
I am really surprised his videos don't have more likes.