How many books are there in the main 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
4
8
4
8
4
8
4
8
4
8
4
142
8
4
17
142
8
4
14
17
7 books
10
8
142
4
14
17
2
10
7 books
4
109
142
14
17
2
10
67
9
4
14
7 books
17
7 -
2
109
142
10
9
67
4
11
14
17
2
7 books
10
7 volumes
109
142
9
7 -
4
11
7 of them
14
7 Books
17
67
2
10
9
7 books
4
11
7 volumes
109
142
14
17
62
7 -
2
7 Books
10
67
9
ten
4
11
14
7 books
17
2
3
7 volumes
109
142
7 of them
10
25
62
9
7 -
7 Books
67
71
4
11
ten
14
17
2
3
148
7 books
10
25
7 volumes
109
9
62
4
11
14
7 Books
17
67