Part A is for everyone.
Part B explains how ZonTracker helps and gives you extra data.
Part C works with OR without ZonTracker showing the big-picture framework of testing, optimizing, scaling FB ads, as well as the strategy and tactics of implementation, exact details of campaign/ad setup, and hacks for quick wins.
IMPORTANT: Use Part C strategies to create and test ads (Video 4). Once you are getting sales on Amazon and/or your website, scale up using methods and scenarios described in Part A. Use ZonTracker data (Part B) to help you make decisions which ads to turn off that are not getting sales and which to duplicate/scale (Video 5).