How many books are in the Harry Potter series?
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
6
6
5
6
5
6
5
6
5
6
5
6
5
6
5
6
5
6
5
8
6
5
8
6
5
8
6
5
8
6
5
8
6
5
8
6
5
8
6
5
8
6
5
8
6
5
8
6
5
8
5
8
8
4
8
4
8
4
8
4
8
4
7 books
8
4
8
17
7 books
4
10
14
8
17
4
7 volumes
10
7 books
7 of them
14
142
17
9
2
4
10
7 Books
7 volumes
7 books
14
7 -
17
9
142
7 of them
2
4
67
10
14
7 Books
7 volumes
17
9
7 books
2
4
11
10
7 -
142
109
67
7 of them
14
17
9
2
7 Books
4
11
7 volumes
10
7 books
14
142
7 -
109
67
17
9
7 of them
2
4
11
10
7 Books
7 volumes
7 books
14
17
9
142
2
109
4
67
11
10
7 -
7 Volumes
3
14
7 Books
7 volumes
17
9
7 books
2
4
11
10
142
62
109
67
7 of them
3
ten
14
7 -
71
17
9
2
7 Books
4
11
7 volumes
10
7 books