With two hugely successful book-to-movie franchises gearing up their finales, it got us wondering what the next big series might be. One thing is clear: Young adult (YA) literature seems the place to look, with so many of these books causing quite a stir among critics, readers, and movie studios ... and making that ever-important leap to adult audiences that both Harry Potter and Twilight did.
With that in mind, we picked 10 YA series that have been optioned for film and assessed their big-screen potential — click a book cover to start reading. We'd love to know if you agree or disagree with our conclusions, or if we missed a major title. Join the discussion by leaving your comments below.