You can make a playlist by following the steps below:
1. Click on the 'Library' icon.
2. Select a book you would like to listen to.
3. Click on 'Listen'.
4. Swipe to the left.
5. Adjust the order of the books by moving each one with the three horizontal lines on the right. All new & unfinished books in your library are automatically on the playlist, and you can add more titles by adding new books to your library.