Tally's adventures begin in Uglies, where she learns the truth about what life as a Pretty really means. She rebels against the surgery that will make her a Pretty, but ultimately succumbs. In Pretties, Tally has forgotten all about her Ugly life, and when she's reminded, she has a hard time listening. And what little's left of the old Tally is further compromised in Specials, because Tally has been transformed into a fierce fighting machine. But when she's offered a chance to forever improve civilization, will she be able to overcome her brainwashing? The answer is evident years later in Extras, after the Pretty regime has ended. Boundless human creativity, new technologies, and old dangers have been unleashed upon the world. But fame and popularity can be just as dangerous as extreme beauty….

Tally is about to turn sixteen, and she can't wait. Not for her license -- for turning pretty. In Tally's world, your sixteenth birthday brings an operation that turns you from a repellent ugly into a stunningly attractive pretty and catapults you into a high-tech paradise where your only job is to have a really great time. In just a few weeks Tally will be there.

But Tally's new friend Shay isn't sure she wants to be pretty. She'd rather risk life on the outside. When Shay runs away, Tally learns about a whole new side of the pretty world -- and it isn't very pretty. The authorities offer Tally the worst choice she can imagine: find her friend and turn her in, or never turn pretty at all. The choice Tally makes changes her world forever.