How do I enable the "Reading Aid"?

When reading an e-book, you can choose to use the "Reading Aid" so you only see a small section of the text at a time.

You can find the feature under settings in the reader:

1. Open an e-book
2. Tap the small icon at the bottom of the page
3. Select “Enable Reading Aid”
4. You can choose a small or large reading field

Now you can drag the line down the page as you read.

You can also choose to train your reading speed by turning on “Train reading speed” under “Reading Aid”.