Step into the glamorous yet shadowy world of Rosewood, Pennsylvania, where secrets lurk behind every manicured hedge and no one is quite who they seem. Sara Shepard's hit young adult mystery series Pretty Little Liars follows four high school friends—Spencer Hastings, Hanna Marin, Aria Montgomery, and Emily Fields—whose lives unravel after the mysterious disappearance of their clique leader, Alison DiLaurentis. Faced with a relentless blackmailer known only as "A," the girls must navigate a web of lies, scandals, and danger. Whether you are a fan of the hit television adaptation or a newcomer seeking a suspenseful teen thriller, this guide outlines the ultimate reading order to experience the Rosewood drama.
The Recommended Reading Order
For the best reading experience, it is highly recommended to follow the series in its publication order. The main mystery is meticulously paced across four distinct arcs. Reading companion novels out of order—especially the prequel—will spoil massive plot twists that the main series spends books building up to.
- Pretty Little Liars (2006)
- Flawless (2007)
- Perfect (2007)
- Unbelievable (2008)
- Pretty Little Secrets (2012) – A holiday companion novel that fits chronologically between books 4 and 5.
- Wicked (2008)
- Killer (2009)
- Heartless (2010)
- Wanted (2010)
- Twisted (2011)
- Ruthless (2011)
- Stunning (2012)
- Burned (2012)
- Ali's Pretty Little Lies (2013) – A prequel novel detailing the DiLaurentis family secrets. It is best read after Book 12 (Burned) or at the very end of the main series to prevent spoilers.
- Crushed (2013)
- Deadly (2013)
- Toxic (2014)
- Vicious (2014)
- The Liars (2022) – An Audible Original audiobook sequel set 15 years in the future.
Breaking Down the Story Arcs
Sara Shepard structured the sixteen main novels into four distinct four-book arcs, each building up to a dramatic climax and a major reveal regarding the identity of "A." Knowing these arcs helps readers understand the pacing and checkpoints of the series.
Arc 1: The Original 'A' (Books 1–4)
The series kicks off with the girls reuniting three years after Alison's disappearance when they begin receiving threatening texts exposing their deepest, darkest secrets. This arc establishes the core friendships and Rosewood's glittering yet toxic atmosphere. The mystery concludes in Unbelievable with the unmasking of the very first "A," Mona Vanderwaal.
Arc 2: The Twin Mystery (Books 5–8)
Just when the girls think the nightmare is over, a new "A" emerges with even deadlier intentions. This block of books dives deep into the DiLaurentis family history, introducing the shocking truth about Alison's twin sister, Courtney, and culminating in the reveal of the second "A" in Wanted.
Arc 3: The Conspiracy Deepens (Books 9–12)
Following a dramatic fire and a brief respite, a third "A" begins targeting the group. The girls must figure out how their stalker knows details about a vacation in Jamaica where they committed a terrible deed. This arc introduces Nick Maxwell, a key accomplice, and ends with the explosive events of Burned.
Arc 4: The Final Reckoning (Books 13–16)
The stakes are higher than ever as the girls find themselves on trial for murder. The final four novels follow their desperate attempt to clear their names, expose the ultimate mastermind, and put an end to the "A" game forever. The main book continuity officially concludes with Vicious.
Chronological Order vs. Publication Order
While the chronological timeline would place the prequel Ali's Pretty Little Lies first, new readers should avoid this approach. The prequel explains the exact nature of the DiLaurentis twin switch, which is the central mystery of Arc 2. Reading it first completely ruins the suspense of the first eight books. For the ultimate narrative payoff, wait until after book 12, Burned, to read the prequel, as it perfectly bridges the gap before the final arc begins.
Similarly, the holiday special Pretty Little Secrets takes place during winter break between Unbelievable and Wicked. It offers fun side perspectives and fills in the timeline, making it a perfect transition piece between the first two arcs.
Companion Works, Audiobooks, and Spin-offs
Beyond the core sixteen novels, the Pretty Little Liars universe includes several side projects and related series that are worth exploring:
- The Liars (2022): This Audible Original audiobook brings the original voice cast back to follow the main characters as adults, fifteen years after the events of Vicious. It is an official continuation of the book canon.
- The Emison Stories: Comprising the novellas Pretty Little Love (2017) and Pretty Little Lost (2017), these Kindle Worlds releases explore an alternate universe focused on the Emily/Alison romance. Inspired by the TV show's popularity, they are now out of print and considered non-canon.
- The Perfectionists and The Lying Game: Also written by Sara Shepard, these thriller series are entirely separate in their original book formats. However, the 2019 television spin-off Pretty Little Liars: The Perfectionists merged the two worlds for the screen by bringing characters like Alison and Mona into the Beacon Heights setting.
Major Differences Between the Books and the TV Show
Fans transitioning from the Freeform television show to the books will find several major deviations in plot and character fates. In the TV show, the identity of the final "A" is Alex Drake (Spencer's secret twin), whereas the books focus heavily on the DiLaurentis twin rivalry and the accomplice Nick Maxwell. Additionally, character relationships differ significantly; for example, Ezra Fitz is arrested and written out of Aria's romantic life much earlier in the books, and Noel Kahn plays a vastly different role.