Records the Grand Historian, Volume 80, Biographies Yue Yi,

1. Operation is simple, using the three buttons at the bottom of the screen.

2. There are three types of buttons: "FIRST", "NEXT", and "BACK".

3. When the "FIRST" button is pressed, a Yes or No confirmation is displayed.

4. A unique feature of the app is that it can be resumed from the point where it was closed.

5. It can be operated with one hand.

6. If there is too much text to display on the screen, you can view it by scrolling vertically.

7. The display speed is instantaneous and stress-free.

8. There is no limit to the number of times it can be used.