The following affiliate links are the courses, educational resources that I personally trust and have first-hand experience in. I will never recommend anything that I cannot personally vouch for.
THE BEST COURSE TO LEARN HOW TO SELL ON AMAZON FBA. THIS COURSE WILL TEACH YOU EVERYTHING YOU NEED TO KNOW AND TO SELL ON AMAZON FBA EXACTLY LIKE I DO:
https://www.amazingsellingmachine.com/#5ce23f2e
READ THIS BOOK IF YOU HAVE EVER WANTED TO START AND BUILD YOUR OWN BRAND
https://www.amazing.com/million-dollar-brand-book/#a_aid=5ce23f2e&a_bid=f8c15cea
IF YOU ARE STARTING A BUSINESS, THEN YOU WILL NEED TO LEARN HOW TO BUILD TEAMS TO SCALE LARGE AND FAST, READ THIS BOOK (I listened to this one on Audible while I drive and while I run)