Since the beginning of Booko, books could belong to a Series. This makes finding the next book in a series a snap. However, reality doesn’t conform to this model and there exists books which belong to multiple series.
This little fly in the ointment has been resolved now – Books can now belong to multiple series.
![The book A New Beginning is displayed belonging to two series - Book 1 in "The Royal Ranger" and Book 12 in "Ranger's Apprentice"](https://tech.booko.info/wp-content/uploads/2023/04/image-1024x829.png)