Depends on how you like to learn. I prefer a book - something I can read in order, skip back/forward, bookmark, put down & pick up again where I left off, etc. I think I am dating myself there. However, once becoming somewhat adept at it, I confess that Google is my go to route, but that's because most of the time I need a reminder or an adjunct and not a full blown tutorial. I know that if you Google for Access Bible and look hard you can find older pdf versions to download. The thing with VBA is that not much has changed over the years, so even if you find a 2003 version you'd be well on your way. That assumes that books are your thing, of course.
Others will recommend Steve Bishop videos. If I google ms access video tutorials and restrict results to videos, I only get 16 million hits, so kinda sparse, no?
The more we hear silence, the more we begin to think about our value in this universe.
Paraphrase of Professor Brian Cox.