Bestselling Books Week Ended January 8th.

FICTION

1. "The Mistress" by Danielle Steel (Delacorte)

2. "Double Down: Diary of a Wimpy Kid" by Jeff Kinney (Amulet)

3. "Fantastic Beasts and Where to Find them: The Original Screenplay" by J.K. Rowling (Arthur A. Levine)

4. "The Whistler" by John Grisham (Doubleday)

5. "Harry Potter and the Cursed Child Parts One and Two" by J.K. Rowling, Jack Thorne, John Tiffany (Scholastic)

6. "Tales from a Not-So-Friendly-Frenemy" by Rachel Renee Russell (Aladdin)

7. "Below the Belt" by Stuart Woods (G.P. Putnam's Sons)

8. "The Underground Railroad" by Colson Whitehead (Doubleday)

9. "Cross the Line" by James Patterson (Little, Brown)

10. "Dog Man Unleashed (Dog Man ?2)" by Dav Pilkey (Graphix)

NONFICTION

1. "Food, Health, and Happiness" by Oprah Winfrey (Flatiron Books)

2. "The Lose Your Belly Diet" by Travis Stork (Ghost Mountain Books)

3. "Hillbilly Elegy" by J.D. Vance (Harper)

4. "Jesus Always" by Sarah Young (Thomas Nelson)

5. "The Princess Diarist" by Carrie Fisher (Blue Rider Press)

6. "Tools of Titans" by Timothy Ferriss (Houghton Mifflin Harcourt)

7. "The Magnolia Story" by Chip and Joanna Gaines (Thomas Nelson)

8. "The Whole30 Cookbook" by Melissa Hartwig (Houghton Mifflin Harcourt)

9. "The Whole30" by Melissa & Dallas Hartwig (Houghton Mifflin Harcourt)

10. "Killing the Rising Sun" by Bill O'Reilly & Martin Dugard (Henry Holt & Co)

FICTION E-BOOKS

1. "The Mistress" by Danielle Steel (Delacorte)

2. "Below the Belt" by Stuart Woods (G.P. Putnam's Sons)

3. "Distant Shores" by Kristin Hannah (Ballantine)

4. "Rock Chick Reawakening" by Kristen Ashley (Kristen Ashley)

5. "The North Water" by Ian McGuire (Henry Holt and Co.)

6. "The Whistler" by John Grisham (Knopf Doubleday)

7. "Silver Bay" by Jojo Moyes (Penguin)

8. "Small Great things" by Jodi Picoult (Random House)

9. "The Handmaid's Tale" by Margaret Atwood (Houghton Mifflin Harcourt)

10. "A Man Called Ove" by Fredrik Backman (Washington Square Press)

NONFICTION E-BOOKS

1. "An Invisible Thread" by Laura Schroff and Alex Tresniowski (Howard Books)

2. "The Lost City of the Monkey God: A True Story" by Douglas Preston (Grand Central Publishing)

3. "Notes from a Small Island" by Bill Bryson (HarperCollins)

4. "Hillbilly Elegy" by J.D. Vance (HarperCollins)

5. "Wishful Drinking" by Carrie Fisher (Simon & Schuster)

6. "The Lose Your Belly Diet" by Travis Stork (Ghost Mountain Books)

7. "Man's Search for Meaning" by Victor E. Frankl (Beacon Press)

8. "You are a Badass" by Jen Sincero (Running Press)

9. "A People's History of the United States" by Howard Zinn (HarperCollins)

10. "Hidden Figures" by Margot Lee Shetterly (HarperCpollins)

Nielsen BookScan gathers point-of-sale book data from about 16,000 locations across the U.S., representing about 85 per cent of the nation's book sales. Print-book data providers include all major booksellers and Web retailers, and food stores. E-book data providers include all major e-book retailers. Free e-books and those sold for less than 99 cents are excluded. The fiction and nonfiction lists in all formats include both adult and juvenile titles; the business list includes only adult titles. The combined lists track sales by title across all print and e-book formats; audio books are excluded. Refer questions to Michael.Boone(at)wsj.com.

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