Recommendations for board games that game designers should play to learn about mechanics and industry trends (video):

https://www.youtube.com/watch?v=MvUAri5EAbw

How to go from crowdfunding a project to selling it through e-commerce (video):

https://www.youtube.com/watch?v=k6CZw8snoro

Rob Daviau on how to playtest like a pro, receive feedback, iterate, and playtest a whole lot more (video):

https://www.youtube.com/watch?v=Wt5_jrytBTs

The board game designer’s oath: some best practices for doing right by your playtesters and fellow designers (video):

https://www.youtube.com/watch?v=7ekw8FYQUG4

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