[["Their are 7 books in the Harry Potter series. ", 32.0], ["There are seven books in the Harry Potter series.", 28.0], ["Harry Potter 7 Book Series: Harry Potter & the Sorcerer's Stone: Harry Potter & the Chamber of Secrets: Harry Potter & the Prisoner of Azkaban: Harry Potter & the Goblet of Fire: Harry Potter & the Order of the Phoenix: Harry Potter & the Half-Blood Prince: Harry Potter & the Deathly Hallows", 16.0], [" The Harry Potter series contains eight books. ", 15.0], ["There is 7 books in Harry Potter series: The Philosopher's Stone\u00a0(1997); The Chamber of Secrets\u00a0(1998); The Prisoner of Azkaban\u00a0(1999); The Goblet of Fire\u00a0(2000); The Order of the Phoenix\u00a0(2003); The Half-Blood Prince\u00a0(2005); and The Deathly Hallows\u00a0(2007)", 9.0], ["There are 7 books in the Harry Potter series staring with The Philosopher\u2019s Stone in 1997 and ending with The Deathly Hallows in 2007.", 7.0]]
how many books are there in the harry potter series
literature