Don't overlook the accompanying 13-page reference guide (which SYNC does not mention, AFAIK). Audible has posted the link under the audiobook's Publisher's Summary on
this page, which link directs one to
this downloadable PDF document.
(Had I known about this supplement earlier, I'd have downloaded it at the time I "bought" McKinstry's ebook,
when it was a NOOK freebie.)