Amazon books

Other Apple Chat

hi all
i have a question regarding Amazon books.
i didn't buy a book from Amazon before, but i want to buy some books now.
please tell me, when we buy a book from Amazon, how can we read it?
do we read it online, or download it to read it on our ios device or via braille display?
if it's online, can we copy the text? or is downloadable?
have a good day