If you are looking for alternatives or companion guides, these are highly recommended by the art community:
He had spent months hunting for a specific resource: the "Artist Master Series: Color and Light." It was rumored to be the definitive guide to capturing the glow of a sunset and the depth of a shadow. Finally, after hours of scouring forums, he found it. The PDF download was complete.
: Reviews from YouTube and Parka Blogs highlight its effectiveness for both digital (Photoshop/Procreate) and traditional painters. Top Community Reviews Book Review: Artists' Master Series: Color & Light