Some owners hate reading, doesn't want to be told what to do and want to learn by experience.
Fine. I was one of them. Until I got bored of wasting time & doing damage...
Also look for any old bike-related book from the 50's, like "the Book of the BSA",
"Modern Motorcycle Maintenance" by Osborne, "BSA" by Munro, etc
And don't forget the A10 INSTRUCTION MANUAL that came with the bike.