Apart from regular eBooks (ePub), B&N also has a proprietary eBook format (ePib) for Interactive Kids eBooks with narrations and fun activities.
Nook Kids allowed children to interact with stories viewed in rich detailed colors accompanied by text block narration and pictures.
Top Features of Nook Kids eBook (ePib)
- Auto Narration and Text Block Narration with Read To Me functionality.
- Region Magnification and Panel view
- Media files are not allowed in this eBook format.
Requirements for developing an ePib file:
- Book cover at least 600 pixels wide
- When viewed on 250% art and text should not pixilated
- Fonts should be embedded in PDF file
- Audio files must be high quality uncompressed .wav files