The book is about 40 pages, all but 13 of them are codes. I could break it down to the common tires that we might run across on a 'Bolt, with maybe some of the odd ones just in case.
I do know off the top of my head one code that is no longer used. Now, this isn't a joke, but the code is VD. That was the code for Decatur IL Firestone plant, which has been closed. That's where most of the Wilderness tires form the Explorer fiasco came from.
