It's no secret that a lot of movies are based on books, but the same goes for some of your favorite TV shows. From Pretty Little Liars to The Vampire Diaries, some popular franchises were actually bestsellers before they hit the small screen. Before you pick your next read, take a look at the books that inspired your favorite series and then check out all the books getting the movie treatment this year.
L. J. Smith started the Vampire Diaries book series back in 1991, which is what the mystical show about two vampire brothers in love with the same girl is based on.
If you love Bravo's comedy, then you should definitely read through Vicki Iovine's Girlfriends' Guides book series.
The Magicians trilogy by Lev Grossman has caused quite a stir since it hit Syfy this year. Not only did the finale leave fans on the edge of their seats, but it's already been picked up for another season.
Not only has Cassandra Clare's book series, The Mortal Instruments, gotten the TV treatment, but it was also turned into a movie with Lily Collins and Jamie Campbell Bower in 2013.
The period drama is based on Alexander Rose's book Washington's Spies: The Story of America's First Spy Ring, which recounts the history of the Culper Ring.
Did you know that Piper is actually based on a real person? The Netflix series is inspired by Piper Kerman's memoir, Orange Is the New Black: My Year in a Women's Prison.
Tom Perrotta's novel The Leftovers is just as good as the series, minus Justin Theroux's attractive face, of course.
While Lucy Liu gives Dr. Watson a modern-day spin, the CBS show definitely pulls some influence from the classic Sherlock Holmes books by Arthur Conan Doyle.
The Fox show is loosely based on two of Washington Irving's shorts, "The Legend of Sleepy Hollow" and concepts from "Rip Van Winkle."
Before it was turned into an addictive Amazon series, The Man in the High Castle was an alternative history novel by Philip K. Dick.
The hilarious comedy is actually based off of producer Eddie Huang's life and book, Fresh Off the Boat: A Memoir.
Just like the popular Freeform show, Sara Shepard's Pretty Little Liars novels have a pretty big fanbase.
This Showtime hit may be packed with action, but it got all of its inspiration from just one book, House of Lies: How Management Consultants Steal Your Watch and Then Tell You the Time.
If you just can't get enough of the supernatural, then you should sink your teeth into the Women of the Otherworld series by Kelley Armstrong.
While the HBO show constantly shocks fans with each new episode, some of the plot points aren't that surprising to people who have already read George R. R. Martin's Game of Thrones novels.