PM of the 50's and 60's and so on is great. 300 pages with a lot of useful info, fold out posters etc and information from industry insiders and engineers. Magazines were king before the internet. In the past I probably ahd subscription to every major hot rodding and automotive magazine.
I was reading some late 50's/early 60's PM automotive stuff and foreign cars from Europe were already a sales threat. The cars were very small and basic, usually ugly, often unreliable and not all that much cheaper. No one could figure out why consumers were buying them or what exactly they wanted Detroit to build. So Detroit quickly came out with the Falcon, Corvair, and several other models. JMO but there were stupid people and media starting in the late 50's that didn't know a good situation when they had it and ruined it for everyone, just like in more recent times. Anyway it's good reading into the past.