In addition to reading the books, another way to learn about the divine economy theory is to read the specific blogs that serve as companions to the books. You can either browse them by topics of interest or go to the earliest entries and read them in order.

Macroeconomics @ divine economy theory blog  

Microeconomics @ divine microeconomy theory blog 

Ethical Economics @ divine economy ethics blog.

To begin the process go here. There are no prerequisites.