There are several courses in the playlist including: how to use custom white balance, how to photograph snow, anatomy of a photograph (two of them), my thoughts on GIMP and how to use cheap extension tubes for macro photography.
This course is offered through Udemy. You can get the course for $15 (save $10) by using this coupon.
I have been a full time professional photographer since 1987. In that span I have photographed over 800 weddings, thousands of portraits, still life products, landscape, nature and architecture. I have won awards at all levels of competition including the International Photography Competition. In 2008, I was certified by the Professional Photogaphers of America and in 2015 I received my Master Photographer Degree.