The Fault in Our Stars by John Green was once again #1 on Apple's iBooks bestseller list. James Patterson's Unlucky 13, out May 5, hit the list at #2 for the week ended May 12. John Sandford's Field of Prey, released May 6, followed at #3.

Kiera Cass's The One, which generated significant attention during its publication week with a popular social media campaign, landed at #5. Finding Me by Michelle Knight debuted at #6. The memoir, released by Weinstein Publishing on May 6, is Knight's account of her decade in captivity at the hands of Ariel Castro.

iBooks US Bestseller List - Paid Book

1. The Fault in Our Stars by John Green - (Penguin Group US)
2. Unlucky 13 by James Patterson & Maxine Paetro - (Little, Brown and Company)
3. Field of Prey by John Sandford - (Penguin Group US)
4. The Target by David Baldacci - (Grand Central Publishing)
5. The One by Kiera Cass - (HarperTeen)
6. Finding Me by Michelle Burford & Michelle Knight - (Weinstein Publishing)
7. Insurgent by Veronica Roth - (Katherine Tegen Books)
8. The Goldfinch by Donna Tartt - (Little, Brown and Company)
9. Allegiant by Veronica Roth - (Katherine Tegen Books)
10. Divergent by Veronica Roth - (Katherine Tegen Books)
11. Alpha by Jasinda Wilder - (Seth Clarke)
12. Rush Too Far by Abbi Glines - (Atria Books)
13. Heaven is for Real by Lynn Vincent & Todd Burpo - (Thomas Nelson)
14. Gone Girl by Gillian Flynn - (Crown Publishing Group)
15. The Collector by Nora Roberts - (Penguin Group US)
16. Instinct by T. D. Jakes - (FaithWords)
17. The Selection by Kiera Cass - (HarperTeen)
18. Natchez Burning by Greg Iles - (William Morrow)
19. Balancing It All by Candace Cameron Bure - (B&H Publishing Group)
20. Orphan Train by Christina Baker Kline - (William Morrow Paperbacks)