To learn how to add your Amazon purchased books from Goodreads you take a look at this post. When you see your Amazon purchases you will have the ability to add them directly to the screen.
It would be very easy to go and click the Want to Read button on each book and add them to the list. However, it would leave you with a big unorganized mess of books. I say this from personal experience. Instead it is best to take your time and import in each book separately, adding it in to the collections that you wish it to be in.
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