Brian Ehni asked:
"Where does one order the book?"

You can order it from the NMRA Company Store on their website:
https://www.nmrastores.com/NMRA_Store/Store_Entrance.html

Click on the appropriate "Members" or "Non-Members" portal, then click
on the "Books" tab, then click on "Next". (The book is on page 2 of
the books listing.)


Ben Hom