Paula Hawkins's The Girl on the Train is back on track at #1, with Glennon Doyle Melton's Oprah-approved memoir, Love Warrior, at #2. For the rest of the top five, it's Potter all the way down; three new Rowling works, including two short story collections and Hogwarts: An Incomplete and Unreliable Guide, are in slots #3, #4, and #5.

iBooks US Bestseller List - Paid Books

Rank, Book Title by Author Name, ISBN, Publisher

1. The Girl on the Train by Paula Hawkins - 9780698185395 - (Penguin Publishing Group)
2. Love Warrior by Glennon Doyle Melton - 9781250075741 - (Flatiron Books)
3. Short Stories from Hogwarts of Heroism, Hardship and Dangerous Hobbies by J.K. Rowling - 9781781106280 - (Pottermore)
4. Hogwarts: An Incomplete and Unreliable Guide by J.K. Rowling - 9781781106273 - (Pottermore)
5. Short Stories from Hogwarts of Power, Politics and Pesky Poltergeists by J.K. Rowling - 9781781106297 - (Pottermore)
6. Apprentice in Death by J. D. Robb - 9781101987988 - (Penguin Publishing Group)
7. The Couple Next Door by Shari Lapeña - 9780735221116 - (Penguin Publishing Group)
8. Just Friends by Billy Taylor - 9781530511518 - (Billy Taylor)
9. Sting by Sandra Brown - 9781455581238 - (Grand Central Publishing)
10. Behind Closed Doors by B A Paris - 9781250121011 - (St. Martin's Press)
11. The Light Between Oceans by M.L. Stedman - 9781451681765 - (Scribner)
12. Harry Potter and the Cursed Child: Parts 1 and 2 (Special Rehearsal Edition) by J.K. Rowling - 9781781107041 - (Pottermore)
13. The Girl with the Lower Back Tattoo by Amy Schumer - 9781501139901 - (Gallery Books)
14. The Underground Railroad (Oprah's Book Club) by Colson Whitehead - 9780385537049 - (Knopf Doubleday Publishing Group)
15. Truly Madly Guilty by Liane Moriarty - 9781250069818 - (Flatiron Books)
16. Razor Girl by Carl Hiaasen - 9780385349758 - (Knopf Doubleday Publishing Group)
17. Depraved Heart by Patricia Cornwell - 9780062325426 - (William Morrow)
18. I Let You Go by Clare Mackintosh - 9781101987513 - (Penguin Publishing Group)
19. Empire of Storms by Sarah J. Maas - 9781619636088 - (Bloomsbury Publishing)
20. Bullseye by James Patterson - 9780316284554 - (Little, Brown and Company)