Here are a few useful tips to get started with using your Kobo eReader.
Where is my eBook?
Your eBook appears on your eReader's Home screen after you purchase it from the Walmart eBooks site. In most cases, your eReader will download your eBook automatically if it's connected to WiFi.
To download your eBook manually, tap the 
Sync icon at the top of the screen, then tap Sync now. Your eBook will appear on the Home screen after the downloading process completes.
If you still can't see the eBook you just purchased, try the steps in the article below:
Turning pages
To turn pages, tap the left and right edges of the screen. You can also swipe left or right on the screen to turn pages.
Using the Reading Menu
The Reading Menu lets you customize the way text appears on the screen, see the table of contents, and more.
To open the reading menu, while reading your eBook, tap the middle of the screen. The Reading Menu will appear. You'll see icons along the top of the screen, and at the very bottom of the screen.
Here are a few menus that you might find helpful. To open a menu, just tap on the icon.
Font icon - Adjust your font size, font type, line spacing, and margins
Table of Contents icon - See the eBook's table of contents. 
Reading settings icon - Lets you customize page turning options, how often the screen refreshes, and more.
ComfortLight icon - Adjust your screen's brightness.