Epic Fantasy is a genre that encompasses all the other literary traditions inside itself, so when talking about the most popular books shaping its long history, it’s not surprising to be confronted with a plethora of widely disparate stories, characters, and worlds.

Whether it be the rolling hills of Middle-earth, where the Free Peoples fight against the Shadow emerging from the eastern sky, or the high storms of Roshar sweeping across the continent and reminding the world of what it has forgotten, or even the petty feuds of the lords and ladies of the Seven Kingdoms and the commoners ever embroiled in their conflicts, the Fantasy genre has something to offer to anyone.

10 most popular fantasy book series

But though the number of acclaimed Fantasy books is already beyond count — despite the relatively short time since it rose to popularity in the ‘70s — there are some names that, through popularity or influence or standing the test of time, have managed to become timeless.

Harry Potter by J.K. Rowling

Having sold over 500 million copies worldwide,Harry Potteris undoubtedly the most popular and recognizable name in fantasy. The story of The Boy Who Lived finds new fans in every generation of young readers, and the acclaimed movie adaptations have assured J.K. Rowling’s immortality in the speculative fiction landscape. Harry Potter might be derivative and, at times, underwhelming, especially for seasoned fantasy readers, but there’s a sense of sincerity and warmth within Rowling’s pages that you can’t quite find anywhere else.

The Lord of the Rings (and The Hobbit) by J.R.R. Tolkien

The Lord of the Ringswas the much-awaited sequel toThe Hobbitand took the world by storm when it came out in 1954. In one of the initial reviews, The Sunday Times praised Tolkien’s achievement by writing: “The English-speaking world is divided into those who have readThe Lord of the RingsandThe Hobbitand those who are going to read them.” Many years later, these words sound almost prophetic. We don’t have Eru Ilúvatar’s omniscience to claim there would be no High Fantasy today without Tolkien, but we do know the entertainment world would not be the same.

The Chronicles of Narnia by C.S. Lewis

The Lion, the Witch and the Wardrobewas once many a child’s most memorable fantasy read before taking on serious stories. I remember going through the pages and being absolutely enamored by the world C.S. Lewis was spinning into existence. I also remember asking my parents to buy me the sequel before the first book was even finished. In a lot of ways,The Chronicles of Narniais like the compromise between Tolkien’sThe Lord of the Rings, which built an imaginative world from the ground up, and Rowling’sHarry Potter, which combined the fantastical with the real.

The Wheel of Time by Robert Jordan

While there’s no denying that Tolkien’s legacy was mountainous, what followed afterThe Lord of the Ringswas a string of unoriginal, generic rip-offs that all wanted to jump on the bandwagon and imitate the professor’s success. In fact, it wasn’t until writers like Robert Jordan and George R.R. Martin came along to breathe fresh air into the lungs of this tenuous new beast that Epic Fantasy truly began to soar as a genre.The Wheel of Timeby the former is one such work that built on Tolkien’s legacy and, having sold close to 100 million copies since its conception, remains one of the most ambitious feats of imaginative worldbuilding ever attempted.

A Song of Ice and Fire by George R.R. Martin

George R.R. Martin may not have become as successful and prominent as he is today without HBO’sGame of Thrones, but the fact thatWesteros is here to stay— whether it be true popular spinoffs likeHouse of the Dragonor the books’ own lingering hype despite the decade-long drought — can only be a testament to his power as an author. Martin has changed the game forever, but more importantly, this is exactly what Epic Fantasy needed to stay relevant after Peter Jackson’sThe Lord of the Ringstrilogy in the early 2000s.

Discworld by Terry Pratchett

Terry Pratchett is a voice to be celebrated, and hisDiscworldseriesremains one of the best-selling, most popular fantasy books of all time. Now, it doesn’t matter how many (or how few) publications decide to write asinine articles about how his literary achievement is overstated (if you know, you know) because there’s always a place in Pratchett’s books for people who are looking for a bit of humorous escapist fantasy to lay down some of their burdens.

The Vampire Chronicles by Anne Rice

This might be a rather odd inclusion, but considering the fact thatThe Vampire Chroniclesby Anne Ricehas sold tens of millions of copies since its release, it should, by definition, have a place in the list of the most popular fantasy books in history. What’s more, there’s no doubt that Anne Rice hugely influenced the gothic and urban fantasy movement withThe Vampire Chronicles. The story was progressive for its time, and its motifs still play a part in informing many other gothic fantasy books.

The Twilight Saga by Stephenie Meyer

Say what you will aboutTwilightand its literary value — or lack thereof — but at the very least, the case of Stephenie Meyer and her huge success should be studied. Now, I’ll admit that I dropped the first book a mere 100 pages in, but the story has certainly left a mark in the fantasy space. Several popular and even acclaimed book series, likeA Court of Thorns and Rosesor the new BookTok sensationFourth Wing,trace their popularity and standing back to Meyer’s work.

The Dark Tower by Stephen King

While you’re able to always expect to find the fantastical in Stephen King’s works, it wasn’t untilThe Dark Towerthat the author forgot about dipping his toes into the genre and dived headfirst into it with a grimdark tale combining tropes from several genres like fantasy, sci-fi, and Spaghetti Western. The seven-book series has sold 30 million copies and is among the finer works in the Epic Fantasy space.

Percy Jackson & the Olympians by Rick Riordan

At first glance,Percy Jacksonmight come off as aHarry Potterclone due to everything it derives from Rowling’s themes and motifs, but the story has much more to offer thanks to Riordan’s brilliant prose and amazing characterization.Percy Jackson and the Olympiansbooksare now among the best-selling fantasy stories in the world, and the new Amazon adaptation is sure to increase that popularity tenfold.

This was our list of some of the most popular fantasy book series out there, but as they say, popularity a great piece of art doth not make. So, to read our picks for the ten best fantasy book series of all time, head tothis article.

Harry Potter and the Order of Phoenix cover

Image via HarperCollins / Art by Alan Lee

The Lion the Witch and the Wardrobe book cover

A Memory of Light book cover

A Game of Thrones book cover

‘Discworld’ covers

The Vampire Chronicles book cover

Eclipse book cover

The Gunslinger book cover