How to receive feedback on your game and handle tricky situations with playtesters without stressing out about it too much (video):

https://www.youtube.com/watch?v=YPgUrMbrudQ

“Keep in mind that every game you create (or try to create) is a learning experience. Know that discarded games are not useless. You will always learn from a failed game. These are the ones that teach you the most. A shelved game is like negative feedback well given, you learn much more than with positive feedback.”
— Roberto Pinheiro

How to make a budget for a crowdfunding project—with a downloadable spreadsheet to help crunch the numbers (video):

https://www.youtube.com/watch?v=fQppJFMCxQc

Intelligent cardboard: a history of different approaches to creating AI systems for tabletop games (video):

https://www.youtube.com/watch?v=S9rEIadqGNs