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Best-selling Book Series of All Time Quiz

How well do you know the best-selling book series of all time? Floored turns the ranking into a building: floor 1 is the top of the list. We name a floor, you guess what's on it, and the lift rides to whatever you picked so you know to go higher or lower.

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Free, no sign-up · 5 lists, a few minutes

How it works

You get a few guesses per floor. Land it on your first guess for 10 points; a near miss still scores. After the book series round, four more lists keep the ride going.

Show the full ranking (25)
  1. Harry Potter 600 million copies
    Bloomsbury's first print run of the first book in 1997 was just 500 hardback copies.
  2. Goosebumps 400 million copies
    R. L. Stine earlier wrote dozens of joke books under the name Jovial Bob Stine.
  3. Perry Mason 300 million copies
    Erle Stanley Gardner set himself a quota of 1.2 million words a year in his pulp days.
  4. Diary of a Wimpy Kid 300 million copies
    It first appeared online on the Funbrain website in 2004, with daily entries.
  5. Choose Your Own Adventure 270 million copies
    Some books play tricks on readers, including endless page loops.
  6. Berenstain Bears 260 million copies
    Many people remember it as 'Berenstein', a popular example of the Mandela effect.
  7. Mr. Men 250 million copies
    Mr. Tickle came first, after Roger Hargreaves's son asked what a tickle looked like.
  8. Sweet Valley High 250 million copies
    Francine Pascal oversaw a team of ghostwriters who wrote the books about the Wakefield twins.
  9. Noddy 250 million copies
    Noddy is a wooden toy who works as a taxi driver in Toyland.
  10. Jack Reacher 200 million copies
    Lee Child spent 18 years at Granada TV before the first Reacher novel came out in 1997.
  11. Thomas the Tank Engine 200 million copies
    Wilbert Awdry first told the stories to his two-year-old son, who was in bed with measles.
  12. Nancy Drew 200 million copies
    There is no Carolyn Keene; the name is a pen name shared by many ghostwriters.
  13. San-Antonio 200 million copies
    The French police hero's sidekick, Berurier, began as a very minor character.
  14. Robert Langdon 200 million copies
    Langdon teaches 'symbology' at Harvard, a field that doesn't really exist.
  15. Geronimo Stilton 180 million copies
    Geronimo is a mouse who runs a newspaper called The Rodent's Gazette.
  16. Percy Jackson 180 million copies
    It began as bedtime stories Rick Riordan told his son, who like Percy has ADHD and dyslexia.
  17. Baby-Sitters Club 172 million copies
    Ann M. Martin wrote an estimated 60 to 80 of the books; ghostwriters wrote the rest.
  18. American Girl 160 million copies
    The books tie in to the dolls that Pleasant Rowland's company began selling in 1986.
  19. Twilight 160 million copies
    Stephenie Meyer has said the idea for the story came to her in a dream.
  20. Star Wars 160 million copies
    The 1977 film's novelization was credited to George Lucas but ghostwritten by Alan Dean Foster.
  21. Little Critter 150 million copies
    The first book's cover spells its title 'Just for Yu', the way a small child might.
  22. Peter Rabbit 150 million copies
    Beatrix Potter self-published 250 copies in 1901 after six publishers turned it down.
  23. Fifty Shades 150 million copies
    It began as Twilight fan fiction called Master of the Universe.
  24. Chicken Soup for the Soul 130 million copies
    The name came from a dream that co-author Jack Canfield had.
  25. Clifford the Big Red Dog 129 million copies
    Clifford was nearly called Tiny; his name came from the author's wife's imaginary friend.

Source: Wikipedia: List of best-selling books (List of best-selling book series) · as of 2026-10

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