I really learn a lot everytime I watch these videos by Steven Edholm (Skillcult)  He offers these videos free on the internet and I support him on Patreon.  I encourage you to support him too if you find these lessons to be of value.  Your support allows him to continue to make great videos with valuable content.

His videos are shared here with his permission and support.

https://www.patreon.com/SkillCult

There is an incredible amount of information, so pace yourself to get through all the lessons.  Super thanks to Steven for all the work he has put into this content!