This is very much a course for beginners - it doesn't assume any prior knowledge of the Divi Theme.
The course takes you through building a website from scratch, so uses the follow along approach to teaching the subject.
Each section covers a different page (Home Page, Portfolio, etc.), and each subsection covers a specific task or new skill.
This course is good for those who don't have any experience with the Divi Theme, and enjoy the hands on / follow along approach to learning. If however you feel that you learn more efficiently by covering each aspect in detail first, and they trying to apply your knowledge, possibly one of the alternative Divi Theme courses would be more appropriate.