Get the next book in a series in Books on Mac
When you’re close to finishing a book that’s part of a series available in the Book Store, a thumbnail of the next book appears in the series stack with “Next” in the corner.
In the Books app on your Mac, click All Books in the sidebar.
Click the series stack, then click to buy or download the next book.
Double-click an unpurchased item to see its full description in the Book Store.
To see all items in a series, click All in Series.