1. To turn it on, press the power switch button on the bottom edge to turn on the Kindle. Select the device language, connect to the wireless network, and register your Kindle in the Amazon account.

2. If you need to read a book, the Kindle is equipped with a touch-screen operation interface. You can perform many tasks by simply tapping or swiping with your finger. To select content, just click on that content. For example, click on the cover or title of the e-book to open the e-book, and click [Menu] on the cover of the content to view the available options.

3. The Kindle Store and Audible Store (if available) offer a wealth of Kindle e-books, Audible audiobooks, [KindleSingles], newspapers, magazines, and blogs. To access the Store, tap on the top of the screen to display the toolbar, and then click on the [Store] icon. You can also find Store options in some menus.

4. To free up Kindle storage, you can manually delete individual items, delete content by content category, or quickly archive content.

5. To charge your Kindle, you can connect your Kindle to your computer via the randomly included USB cable for charging. You can also transfer files to your Kindle via the USB cable. To charge the Kindle through a power socket, you need to equip the USB data cable with an AC power adapter (sold separately).

What software can listen to offline books?

There are many software that can listen to offline books. Here are some commonly used ones:

1. Himalayan FM: A well-known audio platform in China that provides a large number of audio book resources. Users can download them locally for listening.

2. Lizhi.fm: Another well-known audio platform in China that also provides a large number of audio book resources. Users can download them locally for listening.

3. Audible: An audiobook platform owned by Amazon, which provides a wealth of audiobook resources, which users can obtain by purchasing or renting.

4. Lazy Listening to Books: An app specially created for audiobook enthusiasts, providing a large number of audiobook resources, users can download to listen locally.

5. Kuwo Music: A music player app that also provides some audiobook resources, users can download to listen locally.