Audrey Carlan swept this week's list with her erotic series, Calendar Girl. The first book in Carlan's series, January, topped the iBooks bestseller chart for the week ended January 3. Other titles in the series--February, March and April-- also broke the top twelve. Paula Hawkins' Girl on the Train fell one spot to second place, while Elle Kennedy's The Deal dropped three spots to #5.

iBooks US Bestseller List - Paid Books

Rank, Book Title by Author Name, ISBN, Publisher

1. January by Audrey Carlan - No ISBN Available - (Waterhouse Press)

2. The Girl on the Train by Paula Hawkins - 9780698185395 - (Penguin Publishing Group)

3. February by Audrey Carlan - No ISBN Available - (Waterhouse Press)

4. Rogue Lawyer by John Grisham - 9780385539449 - (Knopf Doubleday Publishing Group)

5. The Deal by Elle Kennedy - 9780994054401 - (Elle Kennedy)

6. The Nightingale by Kristin Hannah - 9781466850606 - (St. Martin's Press)

7. The 5th Wave by Rick Yancey - 9781101598962 - (Penguin Young Readers Group)

8. Cross Justice by James Patterson - 9780316407144 - (Little, Brown and Company)

9. March by Audrey Carlan - No ISBN Available - (Waterhouse Press)

10. The Guilty by David Baldacci - 9781455586417 - (Grand Central Publishing)

11. See Me by Nicholas Sparks - 9781455520596 - (Grand Central Publishing)

12. April by Audrey Carlan - No ISBN Available - (Waterhouse Press)

13. The Forgotten Soldier by Brad Taylor - 9780698404144 - (Penguin Publishing Group)

14. All the Light We Cannot See by Anthony Doerr - 9781476746609 - (Scribner)

15. The Mistake by Elle Kennedy - 9780994054418 - (Elle Kennedy)

16. The Martian by Andy Weir - 9780804139038 - (CrownArchetype)

17. The Life-Changing Magic of Tidying Up by Marie Kondo - 9781607747314 - (PotterTenSpeedHarmony)

18. Grey by E L James - 9781101946350 - (Knopf Doubleday Publishing Group)

19. Harry Potter and the Sorcerer's Stone by J.K. Rowling - 9781781105849 - (Pottermore)

20. Not My Father's Son by Alan Cumming - 9780062225085 - (Dey Street Books)