It's simple way to learn anatomy without having to learns about all the bones and muscles that won't help in drawing the human body call it (surface anatomy). Only the important details are discussed  as we work out way from our skeleton construction to the muscles show on the surface of the skin. All while understanding what make the feature that makes the male body is so different from the female body.

Instead of spending 10+ hours on a course and still having no idea about how to go about drawing the body why not just watch a simpler one that takes less time and actually gets the job done.