Summary
Nook and Kindle use different formats for their ebooks, the Nook using ePub and the Kindle using a renamed version of the Mobipocket MOBI format.
1
NOOK sells digital content in the ePub format, which can be read on NOOK dedicated eReading devices and on Android, iPad, iPhone, iPod, Windows 8, and PC and Mac via NOOK’s free NOOK eReading software.
2
However, the standard format for NOOK Books in the Barnes & Noble online store is proprietary EPUB format, which can be converted to make them compatible with other reading devices or reading apps.
3
According to