If you want to cancel the book added to the bookshelf, you need to find the book you are reading recently (in the QQ business card) → go to the book mall to find a better book → bookshelf → edit → delete the book to be deleted.

We usually use QQ to read books, and we don't know how to get back to the book catalog and how to get back to the catalog. Here is a brief introduction to how to operate:

QQ reading, like other book applications, can turn pages left and right on the screen.

To return to the picture catalog or bookshelf for QQ reading, tap the screen with your finger. When the hidden option comes out, click the directory icon on the left side of the screen to return to the book directory, as shown in the figure.

Then you can see the catalogue of books. You can choose a different catalogue or click the back button icon on the right.

If you want to return to the bookshelf that QQ is reading, you can also tap on the screen with your finger and click the "Back" button in the upper left corner.

Finally, you can return to the book catalog, as shown in the figure.