The feeling of discovering that your favorite new listen is actually the start of a series is euphoric. That you can immediately hit play and re-enter a beloved new world, or love story, or era from history is a gift to the devoted listener. But how to pick just 100 of these unique and immersive listening journeys? We defined a series as having a minimum of three books, and—after some debate—we decided the titles had to be anchored in fiction. There are plenty of genres to explore—from YA to horror to historical fiction, from fresh voices to seminal tales, hours upon hours of discovery await.

Mr. Mercedes
Outlander
The Sandman
An Ember in the Ashes
The Hunger Games: Special Edition
You
The Kiss Quotient
Children of Blood and Bone
The Hate U Give
Her Royal Spyness
We Are Legion (We Are Bob)
Patient Zero
The Dispatcher
Still Life
How to Date Your Dragon
The Fellowship of the Ring
Harry Potter and the Sorcerer's Stone, Book 1
Dune
Simon vs. the Homo Sapiens Agenda
Wishes and Wellingtons
The Final Empire
The Mysterious Affair at Styles
Parable of the Sower
MaddAddam
Illuminae
The Eye of the World
A Court of Thorns and Roses
Part of Your World
Crazy Rich Asians
The Gray Man
Let Me Love You
The Black Echo: Special Edition
Hounded
The Fifth Season
In the Woods
Eragon
Patriot Games
Lick
Devil in a Blue Dress
The Lady of the Rivers
A Discovery of Witches
Akata Witch
The Gentleman's Guide to Vice and Virtue
One for the Money
Angels and Demons
The Girl with the Dragon Tattoo
The Lion, the Witch, and the Wardrobe
The Pillars of the Earth
Cinder
My Brilliant Friend
Katherine of Aragon, the True Queen
14
Unsouled
Virgin River
The Golden Compass
A Wizard of Earthsea
Dark Lover
Things We Never Got Over
The One and Only Ivan
The Land: Founding: A LitRPG Saga
Red Rising
Storm Front
The Raven Boys
City of Bones
Kristy's Great Idea
The Wedding Date
Killing Floor
Beautiful Bastard
Beartown
Naked in Death
Written in the Stars
Wolf Hall
Call Me Maybe
The Winter Sea
Diary of a Wimpy Kid
Red Queen
The Lightning Thief
Miss Peregrine's Home for Peculiar Children
The Poppy War
Dungeon Crawler Carl
The Giver
Pucked
Satisfaction Guaranteed
The Cruel Prince
Hell Divers
All Systems Red
Royally Screwed
Shadow and Bone
Interview with the Vampire
The Duke and I
Theft of Swords
The Right Swipe
Rebel
Along Came a Spider
Cold-Hearted Rake
Cake
Moon Called
Off to Be the Wizard
A Princess in Theory
He Who Fights with Monsters: A LitRPG Adventure