Lots of pointers for getting the most out of a playtesting event (video):

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

Lessons learned from working in board games: the game design process, knowing your values and priorities, co-designing, attending conventions, and more (video):

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

“It’s okay to create without publishing as the goal. Game making can be similar to getting into crochet, illustration, or other crafts. It’s beautiful to make things for the sake of it, and realize games are no different from anything else.”
— Marceline Leiman

Materials and tools for making cards for your board game prototype (video):

https://www.youtube.com/watch?v=9SdkIXyZepE

Advice for how to make your Kickstarter page catch potential backers’ attention (video):

https://www.youtube.com/watch?v=f9J2llEmURQ

Answers to various common questions from new board game designers about the design process, licensing, and how the industry works (video):

https://www.youtube.com/watch?v=AVAxOD5TD3M&t=10s

Five ways of jumpstarting your game-making efforts in the new year (video):

https://www.youtube.com/watch?v=Zq-1nP3raoo