Instructions written by professor:The project requirement is to demonstrate your knowledge of the course material in a manner that demonstrates both some breadth of coverage across the semester, and some depth of understanding of specific areas.  This can be done with a textbook” approach in which you develop your own version of a textbook, or a less complete version that would be more of a guidebook or manual.  The more this approach relies on just defining terms, the less depth it is showing.  You can also do any type of coverage of an issue that is important to you, and issue that is important to others in general such as climate change, or a compendium of the terms that you found most interesting and why they are most interesting.
Your project needs to show a combination of breadth of topics and depth of understanding within the topics you cover.  2 chapters would not be breadth, 5 would.  But 8 chapters of material with nothing more than defining terms would show no depth.  Combine the two in whatever way you choose, and any project that shows depth and breadth will be fine.

I have attached the professors instructions and examples of what he is looking for in the paper, in a video. At 9 minutes he goes into A level work, where he talks about breadth and depth he is looking for. After 16 minutes you can close out, he goes on a bit of a ramble.
I have also attached a PDF of the book that is the only thing that you will use.