31 Completed Book Series

Hey! Are you looking for a comforting Book series? Fear not, dear reader, for we have compiled a list of the best book series of all time, tailored to suit every type of reader.

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Whether you’re a die-hard sci-fi fan, a hopeless romantic, or a thrill-seeking enthusiast, we’ve got you covered. So come along, explore the wonderful world of literature together, and discover the top picks that will make your reading experience unforgettable.

Children’s Book Series to Read as an Adult

Reading children’s books as an adult can be a delightful way to revisit childhood memories and rediscover the magic of youth. Many beloved children’s book series hold timeless appeal, worth every second of your time. Here are some of the Children’s book series to read as an adult.

Harry Potter Book Series by J. K. Rowling

Whether you’re 8 or 80, it’s never too late to start an adventure in the wizarding world. The “Harry Potter” book series is a timeless tale that can be enjoyed by readers of all ages. While it may have been written for children, its themes of friendship, courage, and the battle between good and evil are appreciated by people of all ages.

Harry Potter book series by J. K. Rowling follows the journey of a young wizard named Harry Potter and his friends Ron Weasley and Hermione Granger as they attend Hogwarts School of Witchcraft and Wizardry. With its richly detailed universe and memorable characters Harry Potter is a timeless tale that appeals to readers of all ages. The books are sure to leave you spellbound.

Books in the “Harry Potter” Series

  • Harry Potter and the Sorcerer’s Stone
  • Harry Potter and the Chamber of Secrets
  • Harry Potter and the Prisoner of Azkaban
  • Harry Potter and the Goblet of Fire
  • Harry Potter and the Order of the Phoenix
  • Harry Potter and the Half-Blood Prince
  • Harry Potter and the Deathly Hallows

Amulet Book Series by Kazu Kibuishi

“Amulet” is a graphic novel series that will make your inner child incredibly happy. The series follows the adventures of two young siblings, Emily and Navin, searching for a powerful amulet that could save their mother’s life. With its stunning illustrations and captivating storyline, Amulet is a must-read for both kids and adults.

What truly sets Amulet apart is its ability to tap into the sense of childlike wonder that we all had growing up. Reading these books will transport you back to a time when anything was possible.

Books in the “Amulet” Series

  • Amulet: The Stonekeeper (2008)
  • Amulet: The Stonekeeper’s Daughter (2009)
  • Amulet: The Cloud Searchers (2010)
  • Amulet: The Last Council (2011)
  • Amulet: Prince of the Elves (2012)
  • Amulet: Escape from Lucien (2013)
  • Amulet: Firelight (2015)
  • Amulet: Supernova (2019)
  • Amulet: Waverider (2021)

Percy Jackson Book Series by Rick Riordan

“Percy Jackson” Series is the other gem of a children’s book series to read as an adult. This wildly popular series is inspired by Greek mythology. The story follows the adventures of a young boy who discovers he is the son of Poseidon and embarks on quests filled with mythological creatures, gods, and monsters.

With its fast-paced action and engaging characters, the Percy Jackson series is a delight for readers of all ages. The series consists of five main books, offering hours of entertainment for anyone who loves a good adventure.

Books in the “Percy Jackson” Series

  • The Lightning Thief
  • The Sea of Monsters
  • The Titan’s Curse
  • The Battle of the Labyrinth
  • Percy Jackson and the Last Olympian

A Wrinkle In Time Quintet by Madeleine L’Engle

Do you love tales of time and space? “A Wrinkle In Time Quintet” is a collection of 5 books that follow the lives of the Murray children and their adventures through space and time. A Wrinkle in Time series takes readers on a journey that spans multiple galaxies and dimensions.

It explores the themes of family, friendship, love, and the power of the human spirit. With its unique blend of science fiction, fantasy, and philosophical inquiry, the Time Quintet has captured the imaginations of readers of all ages. The series inspires people to explore the wonders of the universe and the depths of their own souls. 

As an adult reader, revisiting this series offers a fresh perspective on the challenges and triumphs of growing up, reminding us of the powerful bonds of family and friendship. The Time Quintet series is a must-read for anyone who loves timeless classic children’s literature.

Books in “A Wrinkle In Time Quintet” Series

  • A Wrinkle in Time
  • A Wind in the Door
  • A Swiftly Tilting Planet
  • Many Waters
  • An Acceptable Time

His Dark Materials by Philip Pullman

“His Dark Materials” is an adventurous story of two savage children, Lyra Belacqua and Will Parry. They navigate alternate universes, battling witches and armored bears, fallen angels, and soul-eating specters. Their fate, living or dead is in their hands.

His Dark Materials series is a masterful work of children’s literature that transcends age boundaries, offering a rich and rewarding reading experience for adults as well.

Books in “His Dark Materials” Series

These three books are the core of the series:

  • The Golden Compass
  • The Subtle Knife
  • The Amber Spyglass

There are also several companion books and short stories set in the same universe:

  • Lyra’s Oxford
  • Once Upon a Time in the North
  • The Collectors
  • La Belle Sauvage
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Book Series For Romance Readers

After Book series by Anna Todd

The “After” book series by Anna Todd is a phenomenal romance book series that has captured the hearts of millions of readers worldwide. The series follows the tumultuous relationship between Tessa Young and Hardin Scott, two young lovers who are struggling to navigate their feelings for each other. Romance lovers! it has intense romance and drama with a touch of angst.

This book series is perfect for readers who enjoy passionate love stories with a dash of danger and uncertainty. The series has been praised for its addictive storytelling, relatable characters, and steamy romance, making it a must-read for fans of the genre.  After series is sure to leave you breathless and eager for more.

Books in the “After” series

  • After
  • After We Collided
  • After We Fell
  • After Ever Happy
  • Before

Twisted Book series by Ana Huang

“Twisted” series by Ana Huang follows the story of Alexa, a feisty and independent woman, and her relationship with the enigmatic and dominant billionaire, Jesse. Twisted is a seductive, thrilling romance series that keeps you up all night. The story has a good amount of steamy chemistry, twists and turns, and explosive plot.

The Twisted series is perfect for readers who enjoy a good dose of drama and excitement in their romance novels. Huang’s writing style is engaging and addictive, making it easy for readers to get lost in the world she creates. It’s a must-read for any romance reader looking for a long, juicy, and satisfying read.

Books in the “Twisted” book series

  • Twisted Love
  • Twisted Games
  • Twisted Hate
  • Twisted Lies

To All the Boys I’ve Loved Before by Jenny Han

Imagine if your private letters to your secret crushes, accidentally get posted to them. How would you handle this embarrassing situation? The story of “To All the Boys I’ve Loved Before” revolves around this exact same situation.

The series follows the life of Lara Jean, a high school student who wrote letters to all the boys she ever had a crush on and then hid them away. When the letters accidentally get sent out, Lara Jean’s love life becomes complicated as she tries to navigate her feelings for each of the boys.

The story is full of sweet moments, awkward situations, and realistic relationships that will make readers laugh, cry, and swoon. With its mix of humor, romance, and family dynamics, this series is a must-read for anyone looking for a light-hearted and feel-good romance series.

Books In “To All the Boys I’ve Loved Before” series

  • To All the Boys I’ve Loved Before
  • P.S. I Still Love You
  • Always and Forever, Lara Jean 

It Ends With Us by Colleen Hoover

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The romance list is incomplete without mentioning Colleen Hoover. “It Ends With Us” is the New York Times bestselling contemporary romance novel. The book series follows the story of Atlas, a charming and confident man, and Ryle, a strong-willed and independent woman. They navigate their complicated past and present circumstances to find love and happiness.

It Ends With Us is known for its raw and honest portrayal of mental health, relationships, and personal growth.

Books in “It Ends With Us” series

  • It Ends With Us
  • It starts With Us

Explore New contemporary romance standalone novels released in 2024.

Book Series for Mystery Lovers

Gone Girl series by Gillian Flynn

“Gone Girl” Series is a must-read for fans of the mystery genre. This bestselling series is known for its shocking plot twists, complex characters, and atmospheric settings, making it an exciting roller coaster of a story.

The Gone Girl series is a gripping collection of psychological thrillers and you can also read them as a standalone novel. Each novel has a different set of characters as they navigate the treacherous waters of obsession, deceit, and murder. Whether you’re a fan of classic whodunits or prefer your mysteries with a darker, more psychological bent, the Gone Girl series has something for everyone.

Books in the “Gone Girl” Series

  • Sharp Objects
  • Dark Places
  • Gone Girl

Dublin Murder Squad series by Tana French

“Dublin Murder Squad” mystery series follows a team of detectives in Dublin as they solve crimes and uncover secrets in the city’s dark underbelly. From the eerie atmosphere of the Irish countryside to the gritty streets of Dublin, French transports readers to a world both familiar and unknown.

French’s writing is masterful, with a talent for crafting complex, suspenseful plots that will keep you guessing until the very end.

Books in “Dublin Murder Squad” series

  • In the Woods
  • The Likeness
  • Faithful Place
  • Broken Harbour
  • The Secret Place
  • The Trespasser

The Dark Tower series by Stephen King

Tess Monaghan series by Laura Lippman

What is the best book series for adults?

The Wheel Of Time by Robert Jordan

Robert Jordan’s epic fantasy saga, The Wheel of Time! This #1 New York Times bestseller follows the journey of Moiraine Damodred as she embarks on a perilous quest to find the one destined to defeat the dark forces threatening the world.

With its richly detailed world-building, intricate plotting, and memorable characters, this series will keep you hooked from start to finish. From the peaceful village of Emond’s Field to the farthest reaches of the realm, join Rand al’Thor and his companions on a thrilling adventure that will transport you to a universe unlike any other.

With millions of fans worldwide, The Wheel of Time is the best series for adults looking for an immersive and unforgettable reading experience.

Books in “The Wheel Of Time” Series

  • The Eye of the World
  • The Great Hunt
  • The Dragon Reborn
  • The Shadow Rising
  • Fires of Heaven
  • Lord Of Chaos
  • A Crown of Swords
  • The Path Of Daggers
  • Winter’s Heart
  • Crossroads Of Twilight
  • Knife of Dreams
  • The Gathering Storm
  • Towers Of Midnight
  • A Memory Of Light

The Millennium by Stieg Larsson

This series of three novels is a must-read book series for adults who love a good mystery, suspenseful plot twists, and strong female characters. This spellbinding collection of novels combines elements of murder mystery, family saga, love story, and financial intrigue to create a truly unputdownable read.

Forty years after the disappearance of Harriet Vanger, a young member of one of Sweden’s wealthiest families, her octogenarian uncle hires crusading journalist Mikael Blomkvist to uncover the truth behind what he believes was her murder. Joining forces with Lisbeth Salander, a brilliant but troubled hacker, Blomkvist sets out to expose the dark secrets lurking beneath the surface of the Vanger family’s opulent facade.

As they delve deeper into the case, they uncover a web of corruption and deceit that threatens to destroy everything they thought they knew about Sweden’s elite. With unexpected twists and turns at every corner, this series will keep you guessing until the very end. Don’t miss out on this unforgettable reading experience!

You may also like to read 10 New Book Releases in the Psychological Thriller genre

Books in “The Girl With The Dragon Tattoo” Series

  • The Girl with the Dragon Tattoo
  • The Girl Who Played with Fire
  • The Girl Who Kicked the Hornets’ Nest
  • The Girl in the Spider’s Web
  • The Girl Who Takes an Eye for an Eye
  • The Girl Who Lived Twice
  • The Girl in the Eagle’s Talons

Lord Of The Rings by J.R.R. Tolkien

Since the publication of “The Lord Of The Rings” series in the mid-20th century, this epic fantasy novel has become a cultural phenomenon, spawning movies, video games, and even influencing other works of fiction. “The Lord of the Rings” tells the tale of a hobbit named Frodo Baggins, who inherits the One Ring – a powerful artifact created by the Dark Lord Sauron to enslave the peoples of Middle-earth.

With the guidance of Gandalf, a wise wizard, and a fellowship of brave warriors, including elves, and dwarves, Frodo embarks on a perilous quest to destroy the Ring in the fires of Mount Doom, where it was originally forged. Along the way, they face formidable enemies and even betrayals from within their own ranks. This is a must-read book series for adults and teens.

Books in the “Lord Of The Rings” Series

  • The Fellowship of the Ring
  • The Two Towers
  • The Return of the King

Crescent City by Sarah J. Maas

“Crescent City” is a thrilling and romantic fantasy series that will keep you guessing for more. Sarah J. Maas’s new “Crescent City” series can be a refreshing book series for an adult. This #1 New York Times bestseller follows the story of half-Fae and half-human Bryce Quinlan as she seeks revenge in a contemporary fantasy world of magic, danger, and searing romance.

After a demon murders her closest friends, Bryce finds herself at the center of the investigation, determined to avenge their deaths. Enter Hunt Athalar, a notorious Fallen angel who is forced to work alongside Bryce to solve the case. With a dark power threatening everything they hold dear, they must navigate the dangerous underbelly of Crescent City and confront their own demons to save the day.

This richly inventive new fantasy series features unforgettable characters, sizzling romance, and page-turning suspense that will keep you hooked from start to finish. Don’t miss out on what promises to be one of the best book series for adults this year. Get your copy of House of Earth and Blood today and embark on an unforgettable adventure with Bryce and Hunt.

Books in the “Crescent City” Series

  • House of Earth and Blood
  • House of Sky and Breath
  • House of Flame and Shadow

The Tensorate by Neon Yang

Looking for an unforgettable epic fantasy experience? Pick critically acclaimed Tensorate Series, nominated for the Hugo, Nebula, World Fantasy, Locus, and Lambda Literary Awards. This stunning collection brings together four interconnected novellas that follow the rise and fall of an empire, set in a world unlike any other.

With rebellious nonbinary heroes, sky-dwelling nagas, and revolutionaries fighting for justice, this series has something for everyone. You’ll also encounter pugilist monks, loyal raptors, and even gods themselves. It’s a journey that will take you across a richly imagined world, full of wonders and surprises at every turn.

Described as an “incomparable treasure of modern epic fantasy,” the Tensorate Series is a must-read for fans of the genre. And with all four novellas now available in a single volume, it’s never been easier to immerse yourself in this incredible world. So why wait? Dive in today and discover one of the best book series for adults that you’ll read this year.

Books in “The Tensorate” Series

  • The Black Tides of Heaven
  • The Red Threads of Fortune
  • The Descent of Monsters
  • The Ascent to Godhood

Young Adult Book Series

The Summer I Turned Pretty

Discover the captivating start to a beloved book series by New York Times bestselling author Jenny Han. In “The Summer I Turned Pretty”, Belly spends unforgettable summers at the beach house, sharing adventures with childhood friends Jeremiah and Conrad. Labeled as ‘brothers,’ ‘crushes,’ and so much more, these boys significantly impact Belly’s journey toward adulthood during one extraordinary season. Witness Belly’s transformation in this heartwarming coming-of-age tale from the popular Summer I Turned Pretty series.

Books in the “The Summer I Turned Pretty” Series

  • The Summer I Turned Pretty
  • It’s Not Summer Without You
  • We’ll Always Have Summer

Hunger Games

Dive into the gripping dystopian world of Suzanne Collins’ renowned book series, The Hunger Games. Set in Panem, a post-apocalyptic North America, observe District 12 tribute Katniss Everdeen defy expectations while fighting for survival in the ruthless televised competition, The Hunger Games. Faced with life-altering choices and deadly challenges, Katniss battles not only fellow tributes but also the oppressive Capitol regime. Immerse yourself in this thrilling saga where every move could mean victory or demise.

Also, Read More Books like Hunger Games Book Series

Books in the “The Hunger Games” Series

  • The Hunger Games
  • Catching Fire
  • Mockingjay

Twilight Saga by Stephenie Meyer

The Selection Series by Kiera Cass

Fantasy Book Series To Escape this World

A Court of Thorns and Roses

Crave book series

The Broken Earth by N. K. Jemisin

The Lord Of The Rings by J. R. R. Tolkien

Science fiction

The Three-Body Problem by Liu Cixin

maze runner

divergent book series

The Lunar Chronicles

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