There are fourteen Oz books .
There are 4 books in the series.
There are two books in the series.
There are 6 books in this series.
There are currently 5 books in the series.
There are eleven books in that series
27.5 is a lot of books in the series i think the correct answer would be 15 books in the series
13 books are in the series
21 books in this series so far
There are three books in the night world series
In total, there are 24 Heartland series books.
There is going to be 6 books total in the whole series.
There are a total of seven books in "The Unwanteds" series written by Lisa McMann.