1. First, in the Apple mobile phone, open the book software, as shown in the figure below.

2. On the main page, you can see the book you are reading and the reading target, as shown in the figure below.

3. Enter the library and choose the type of e-book, such as the book in PDF format, as shown in the figure below.

4. Click PDF to open the previously imported PDF book, as shown in the figure below.

5. At this time, click on the top right corner to edit the book, which can not only be shared or deleted, but also be added to the selected works, and it is finished.