That's chapters 1, 2, and 3. Here's our special thread, just for this volume of the book. We're separating the books in case some readers are only able to read parts at a time. That way anyone can go anytime to any part and participate at their own pace. Make sense? Anyway, you'll see.
The forward states that C2 is the most difficult as it was the author trying to find his way through an appropriate length and detail, etc.
Mom just started reading this and is about to start C2.