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. Search : This option helps you to navigate directly to the targeted words.
3. Bookmark : This feature allows you to add a bookmark as well as jump to specific bookmarks.
4. 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.
5. Flipbook : This feature combine the ease of interaction with the efficiency and increased value offered by today’s e-reading technology.