The e-reader app has important features for using e-textbooks in the classroom.

Some functionality of e-book are mentioned below:

1. Zoom in/Zoom out : When you want to get a closer look at a high-quality image that deserves a more detailed study.

2. Thumbnail : This feature is used basically for a small image representation of a larger image usually intended to make it easer and faster to look at or manage a group of larger images.

3. Flipbook : This feature combine the ease of interaction with the efficiency and increased value offered by today’s e-reading technology.

4. Search and find: When you want to look at some important words inside the content Search and find option helps you to steer straight to the desired words.

5. Bookmark: When you want to add some interesting part as a bookmark Bookmark feature allows you to add a bookmark and also you can jump to specific bookmarks.