I'm now teaching a second class at Schoolism. The first class is on painting accurate light and surface, where this one is about using those principles to paint more appealing and expressive lighting. Personally, I've had a lot more fun developing this class, and I honestly think it's going to be even better than the first.
The first class isn't technically a pre-requisite, but if you want to jump straight into this one without taking the other, you should have a solid understanding of these things:
-how different sizes of light fall over a variety of surfaces; eg. matte, shiny, translucent, etc.
-how light and surface color interact
-how different sizes and positions of light cast shadows
-how to control lighting exposure
-a good understanding of how light is scattered through atmospheric effects