>>Perry Marshall
That's a name I haven't heard in a long time.
I asked my wife if there was anything else she recommended. She said lately she has been feeling like she's been falling behind and needs to get caught back up and said that she finds the Google courses to be good refreshers and has recently been thinking of going through it again. If you do that, it's pretty easy to get certified (and can be quite boring - the challenge is paying attention during the parts you know so that you are still awake when they get to the stuff that's new or that you've forgotten).
Other than that, when I asked where she learns stuff, she said that at this point she typically starts with a question, does some web searches and reads what she finds. But again, did reiterate that at least for Google Ads, the official courses put things together in a coherent narrative.
She doesn't do much with FB ads and, I think, is currently not running any campaigns, so no ideas there.