divergent-movie1-214x300Veronica Roth’s Divergent series is helping HarperCollins to a strong first quarter showing of best-sellers.

Once again, the title for which the series is named is the No. 1 best-selling e-book in the U.S., the same rank it achieved last week and a total of four out of the six weeks of best-selling e-books in 2014.

The two other books in the series are ranked Nos. 5 and 6 and have fared well all year as well. The series is being driven by a film based on the first book that is to come out in a month.

Outside of Roth’s hits, HarperCollins, one of the world’s largest publishers, has only one other title on the list this week. Meanwhile, prior to this quarter, HarperCollins has had impressive results over the past six months. Both revenue and profit were up at the publisher in the first half of its fiscal year.

The average price of a best-selling e-book continues to hold fairly steady, increasing to $6.24, up from $6.02 a week ago.

E-book best-sellers from the week ending 2/15:

1. “Divergent” (Divergent Series), Veronica Roth, HarperCollins, $4.88

2. “The Fault in Our Stars,” John Green, Penguin Random House, $5.50

3. “The Goldfinch,” Donna Tartt, Hachette, $7.50

4. “Vampire Academy” (Vampire Academy Series #1), Richelle Mead, Penguin Random House, $2.99

5. “Allegiant” (Divergent Series), Veronica Roth, HarperCollins, $6.99

6. “Insurgent” (Divergent Series), Veronica Roth, HarperCollins, $6.99

7. “Long Knives,” Charles Rosenberg, Amazon, $4.99

8. “Sycamore Row,” John Grisham, Penguin Random House, $6.49

9. “The Husband’s Secret,” Liane Moriarty, Penguin Random House, $5.99

10. “Private LA,” James Patterson and Mark Sullivan, Hachette, $11.99

See the complete list of this week’s top 25 e-book bestsellers at Digital Book World.

Jeremy Greenfield is responsible for managing all editorial content on DigitalBookWorld.com, including the DBW Expert Publishing Blog, the Digital Book Wire and editorial email and social media communications. Prior to joining Digital Book World in October 2011, Jeremy spent three years as a careers editor at FINS.com. Jeremy lives and works in New York City and is a graduate of the University of Pennsylvania.