Young adult novels reigned over the top halves of the print and Kindle bestseller lists for the first six months of the year. John Green’s unstoppable The Fault in Our Stars was the bestselling e-book on Amazon from January to June, and its various editions occupied three spots on the print list. Green shared the leaderboards with Veronica Roth, whose novel Divergent, the first book in her enormously popular trilogy of the same name, hit #1 on the print list for the year to date.

Both Divergent and TFIOS were adapted into much-anticipated films, which were released in March and June, respectively. The remaining titles in Roth’s series will also get the film treatment, and it was recently announced that John Green’s Looking for Alaska is heading to the big screen, as well. (The novel, first published in 2005, came in at #7 on the print list.)

At #9, Sarah Young’s Jesus Calling was the highest-ranking nonfiction title on the print list for the first half of 2014. As for digital, the bestselling nonfiction book was Twelve Years a Slave, Solomon Northrup’s 1853 biography, which was adapted into a 2013 film that won the Oscar for best picture.

While many of the titles on both lists enjoyed boosts from the releases of film adaptations, five books on the print list were adapted to the page from the movie Frozen, the highest-grossing animated film of all time.

Looking at literary fiction, Donna Tartt’s 2014 Pulitzer win for The Goldfinch put the novel at #20 on the print list for the year, and at #5 on the e-book chart.

Nielsen Top 20, as of June 29, 2014

1. Divergent by Veronica Roth (HarperCollins/Tegen)
2. The Fault in Our Stars (paperback) by John Green (Penguin/Speak)
3. Insurgent by Veronica Roth (HarperCollins/Tegen)
4. Allegiant by Veronica Roth (HarperCollins/Tegen)
5. The Fault in Our Stars (hardcover) by John Green (Penguin/Speak)
6. The Fault in Our Stars (Movie tie-in) by John Green (Penguin/Speak)
7. Looking for Alaska by John Green (Penguin/Speak)
8. Hard Luck by Jeff Kinney (Abrams/Amulet)
9. Jesus Calling: Enjoying Peace by Sarah Young (Thomas Nelson)
10. Frozen by Victoria Saxon (Random House/Disney)
11. Heaven Is for Real by Todd Burpo (Thomas Nelson)
12. Oh, the Places You’ll Go! By Dr. Seuss (Random House)
13. Frozen: The Junior Novelization by Sarah Nathan (Random House/Disney)
14. Heaven Is for Real (Movie tie-in) by Todd Burpo (Thomas Nelson)
15. Frozen: Journey to the Ice Palace by Frank Berrios (Random House/Disney)
16. Minecraft: Redstone Handbook by Scholastic (Scholastic)
17. Minecraft: Essential Handbook by Scholastic (Scholastic)
18. Frozen: A Tale of Two Sisters by Melissa Lagonegro (Random House/Disney)
19. Frozen: Big Snowman, Little Snowman by Tish Rabe (Random House/Disney)
20. The Goldfinch: A Novel by Donna Tartt (Little, Brown)

Amazon Kindle Top 20, as of July 2, 2014

1. The Fault in Our Stars by John Green (Penguin/Speak)
2. Divergent by Veronica Roth (HarperCollins/Tegen)
3. Insurgent by Veronica Roth (HarperCollins/Tegen)
4. Allegiant by Veronica Roth (HarperCollins/Tegen)
5. The Goldfinch by Donna Tartt (Little, Brown)
6. The Husband’s Secret by Liane Moriarty (Putnam)
7. Sycamore Row by John Grisham (Doubleday)
8. The Fixed Trilogy by Laurelin Paige (Laurelin Paige)
9. Orphan Train by Christina Baker Kline (Morrow)
10. The Divergent Series Complete Collection by Veronica Roth (HarperCollins/Tegen)
11. Gone Girl by Gillian Flynn (Crown)
12. The Rosie Project by Graeme Simsion (Simon & Schuster)
13. The Target by David Baldacci (Grand Central)
14. The Book Thief by Markus Zusak (Knopf)
15. Twelve Years a Slave by Solomon Northup (HarperPerennial)
16. Unlucky 13 by James Patterson (Little, Brown)
17. The Invention of Wings by Sue Monk Kidd (Viking)
18. Lone Survivor by Marcus Luttrell (Little, Brown)
19. Shadow Spell by Nora Roberts (Berkley)
20. Field of Prey by John Sandford (Putnam)