I'm currently reading "The Starday Story: The House That Country Music Built" by Nathan Gibson. As the title suggests it's the history of the Starday label. The name might mean much to you but it was the launch pad for quite a number of big stars of later years (George Jones, Jimmy Dean, Dottie West, and Roger Miller) and helped relaunch the careers of a good few others (Moon Mullican, Cowboy Copas, Red Sovine, etc.). And they the very first Willie Nelson single!
It's interesting stuff, and is partly credited to Don Pierce who ran the label for many years as he was interviewed extensively by Gibson.
Nathan Gibson is also a musician himself, having released both country and rockabilly albums. I was surprised to realise I had one of his albums on my computer that I had downloaded at some point.