I have typed in dozens of search words on printing and found very little, without being "connected" to the right people. I am a registered member of Goss, Associated Press and a few other sites and even then, you better be fairly important to get responses to questions. I had to get my boss to give permission, for me to be a member of Goss' website.
Without paying for on-line trade school or other, I have been unable to find such a primer. Local library, would be my next step.
I cannot even get a straight answer about, other subjects in the printing bizz. Adobe In-design: Nobody knows why they are using it now??? What the hack is up with guarding all their secrets and reasoning?