To get more than one copy of a book in your Leanpub library, you must have purchased the book more than once.

You can see your purchase history here:

https://leanpub.com/user_dashboard/purchases

We let this happen because sometimes people buy a book more than once, to show support for the author.

To remove a second copy from appearing in your library, you can select the book and put it in your archive:

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