Can I Read Kindle Books on My Nook
Personal Tech | Moving Your E-Book Drove to One Device
https://www.nytimes.com/2018/04/06/engineering science/personaltech/moving-your-eastward-book-collection-to-i-device.html
Tech Tip
Moving Your E-Book Collection to I Device
Q. Is information technology possible to read Nook books on a Kindle? Is there an due east-reader that handles books from multiple e-bookstores?
A. The Barnes & Noble Nook due east-books and Amazon'due south Kindle due east-books utilize dissimilar formats, simply dedicated users take shown it is possible to convert and read Nook books on an Amazon device. How y'all do it depends on the hardware you have — and can have some technical footling to copy over Nook books to a Kindle e-reader or Fire tablet.
Slinging e-books between 2 brands of e-readers is generally unsupported by all companies. It can besides involve breaking the congenital-in copyright protections — so read all the fine print to fully understand what is allowed.
One approach is sideloading the Barnes & Noble Nook app (or even the Google Play store) for Android onto an Amazon Kindle Burn down tablet, which allows you to download and read your Nook books within their own app. You tin can observe various book-moving tutorials for e-readers and Burn down tablets online with a quick search.
Image 
If you practice not desire to put a lot of effort into corralling all your digital books on one tablet, you can get another route. If you have an Android, iOS or Windows 10 tablet at your disposal, you tin can install the Nook, Kindle, Kobo and other e-book mobile apps there to unify your collection on i device. If you are looking to replace an sometime Nook e-reader with something more than versatile, an inexpensive Android-based tablet stocked with e-volume apps can serve as an all-purpose portable library for all your eastward-books.
Source: https://www.nytimes.com/2018/04/06/technology/personaltech/moving-your-e-book-collection-to-one-device.html