Order books from Wizard Coin Supply.
Edkins, Vol. I, 4th Edition 2015
All States Except
Edkins, Vol. II, 4th Edition 2014
Catalogue of Lumber
Company Store Tokens
Explosive Control Tokens
The System Scrip Makers
of Western Ohio
Gordon Dodrill's 20,000 Coal Company Stores is very useful to collectors.
It has been out of print for many years but a used copy can sometimes be found.