Gillian Flynn's "Gone Girl" completed 66 weeks on NPR's Best-Sellers list and was placed sixth on this week's list.

Gillian Flynn's "Gone Girl" completed 41 weeks on the top 10 of NPR's Best-Sellers List and has been holding on to its number one spot for four weeks in a row. The book has been deemed by critics as tough competition to E.L. James' phenomenal erotic novel "Fifty Shades of Grey," which sold more than 60 million copies worldwide.

JK Rowling's "The Cuckoo's Calling" held on to its number one position this week too with Louise Penny's "How The Light Gets In" entering the list for the first time at number two.

The rest of the list reads:

HARDCOVER FICTION

1. "The Cuckoo's Calling" by Robert Galbraith - Weeks on list: 6

2.  "How The Light Gets In" by Louise Penny - Weeks on list: 1

3. "And The Mountains Echoed" by Khaled Hosseini - Weeks o list: 15

4. "The Ocean At The End Of The Lane" by Neil Gaiman - Weeks on list: 11

5.  "Night Film" by Marisha Pessl - Weeks on list: 2

6. "Gone Girl" by Gillian Flynn - Weeks on list: 66

7. "Inferno' by Dan Brown - Weeks on list: 16

8. "The Bone Season" by Samantha Shannon - Weeks on list: 2

9. "Bad Monkey" by Carl Hiaasen - Weeks on list: 12

10. "TransAtlantic" by Colum McCann - Weeks on list: 14

HARDCOVER NON-FICTION

1. "Zealot" by Reza Aslan - Weeks on list: 5

2.  "Let's Explore Diabetes With Owls" by David Sedaris - Weeks on list: 17

3. "This Town" by Mark Leibovich - Weeks on list: 5

4. "William Shakespeare's Star Wars" by Ian Doescher - Weeks on list: 7

5.  "Lean In" by Sheryl Sandberg - Weeks on list: 23

6. "I Could Pee On This' by Francesco Marciuliano - Weeks on list: 52

7. "Grumpy Cat" by Grumpy Cat - Weeks on list: 3

8. "I Could Chew on This" by Francesco Marciuliano - Weeks on list: 3

9. "Lawrence in Arabia" by Scott Anderson - Weeks on list: 2

10. "The Boys In The Boat" by Daniel James Brown - Weeks on list:11