https://sell.amazon.com/learn/how-to-sell-books
https://sellercentral.amazon.com/help/hub/reference/external/G200386280?initialSessionID=134-8935296-1988256&ld=NSGoogle&ldStackingCodes=NSGoogle
What I want to earn is not money, but "knowledge and experiences"
I clearly understand, for me, it is not easy to earn money from selling books.
(賣書不可能賺錢，但這樣的經驗非常寶貴)
However, to learn and to know the business model (books on Amazon) is valuable for me.
