Books that were adapted into Movies/TV Shows
1. 
Harry Potter and the Philosopher’s Stone (Harry Potter, #1)
by:
J.K. Rowling
4.47 avg rating — 11,065,459 ratings 2. 
Harry Potter and the Chamber of Secrets (Harry Potter, #2)
by:
J.K. Rowling
4.43 avg rating — 4,349,695 ratings 3. 
Harry Potter and the Prisoner of Azkaban (Harry Potter, #3)
by:
J.K. Rowling
4.58 avg rating — 4,678,162 ratings 4. 
Harry Potter and the Goblet of Fire (Harry Potter, #4)
by:
J.K. Rowling
4.57 avg rating — 4,069,894 ratings 5. 
Harry Potter and the Order of the Phoenix (Harry Potter, #5)
by:
J.K. Rowling
4.50 avg rating — 3,691,434 ratings 6. 
Harry Potter and the Half-Blood Prince (Harry Potter, #6)
by:
J.K. Rowling
4.58 avg rating — 3,563,712 ratings 7. 
Harry Potter and the Deathly Hallows (Harry Potter, #7)
by:
J.K. Rowling
4.62 avg rating — 4,009,783 ratings 
10. 
Fantastic Beasts and Where to Find Them: The Original Screenplay (Fantastic Beasts: The Original Screenplay, #1)
by:
J.K. Rowling
4.15 avg rating — 165,666 ratings 11. 
Fantastic Beasts: The Crimes of Grindelwald: The Original Screenplay (Fantastic Beasts: The Original Screenplay, #2)
by:
J.K. Rowling
4.02 avg rating — 50,365 ratings 12. 
Fantastic Beasts: The Secrets of Dumbledore: The Original Screenplay (Fantastic Beasts: The Original Screenplay, #3)
by:
J.K. Rowling
4.05 avg rating — 6,575 ratings 
14. 
Siege and Storm (The Shadow and Bone Trilogy, #2)
by:
Leigh Bardugo
3.81 avg rating — 668,562 ratings 15. 
Ruin and Rising (The Shadow and Bone Trilogy, #3)
by:
Leigh Bardugo
3.97 avg rating — 577,316 ratings 