Invisible, by James Patterson and David Ellis, was the second best selling book in Apple's iBooks store for the week ended June 30. The novel, out June 23, fell one behind John Green's The Fault in Our Stars, once again hanging on to its spot at the top. J.K Rowling's The Silkworm (written as Robert Galbraith), fell one spot to #3 (the first book in the author's Cormoran Strike series, The Cuckoo's Calling, fell two spots to #6).

iBooks U.S. Bestseller List - Paid Book

Rank, Book Title by Author Name, ISBN, Publisher
1. The Fault in Our Stars by John Green - 9781101569184 - (Penguin Group US)
2. Invisible by David Ellis & James Patterson - 9780316405409 - (Little, Brown and Company)
3. The Silkworm by Robert Galbraith - 9780316206914 - (Little, Brown and Company)
4. Top Secret Twenty-One by Janet Evanovich - 9780345542946 - (Random House Publishing Group)
5. All Fall Down by Jennifer Weiner - 9781451617801 - (Atria Books)
6. The Cuckoo's Calling by J.K. Rowling & Robert Galbraith - 9780316206860 - (Little, Brown and Company)
7. If I Stay by Gayle Forman - 9781101046340 - (Penguin Group US)
8. The Goldfinch by Donna Tartt - 9780316248679 - (Little, Brown and Company)
9. Mr. Mercedes by Stephen King - 9781476754468 - (Scribner)
10. Looking for Alaska by John Green - 9781101434208 - (Penguin Group US)
11. Insurgent by Veronica Roth - 9780062114457 - (Katherine Tegen Books)
12. Allegiant by Veronica Roth - 9780062209276 - (Katherine Tegen Books)
13. Orange Is the New Black by Piper Kerman - 9780385530262 - (Random House Publishing Group)
14. The Target by David Baldacci - 9781455521234 - (Grand Central Publishing)
15. Gone Girl by Gillian Flynn - 9780307588388 - (Crown Publishing Group)
16. The Matchmaker by Elin Hilderbrand - 9780316329026 - (Little, Brown and Company)
17. Divergent by Veronica Roth - 9780062077011 - (Katherine Tegen Books)
18. Blood Feud by Edward Klein - 9781621573142 - (Regnery Publishing)
19. Thirty-Two and a Half Complications by Denise Grover Swank - 9781939996152 - (dgs)
20. Fifty Shades of Grey by E.L. James - 9781612130293 - (Knopf Doubleday Publishing Group)