Seventeen-year-old Bianca Piper may not be the prettiest girl in her high school, but she has a loyal group of friends, biting wit, and a spot-on BS detector. She's also way too smart to fall for the charms of a man-slut and slimy school hottie Wesley Rush, who calls Bianca the Duff - the designated ugly fat friend - of her crew.

But things aren't so great at home and Bianca, desperate for a distraction, ends up kissing Wesley. Worse, she likes it. Eager for escape, Bianca throws herself into a secret enemies-with-benefits relationship with him.

Until it all goes horribly wrong. It turns out Wesley isn't such a bad listener, and his life is pretty screwed up, too. Suddenly Bianca realizes with absolute horror that she's falling for the guy she thought she hated more than anyone.

With a wry and tell-it-like-it-is voice, New York Times Bestselling novel The DUFF is a witty and poignant story of a teenager struggling with the rules of high school attraction, along with the breaking down of her relationships with family and friends. It is a novel about what it means to be sexy, in a world where we feel we have to be perfect!

The DUFF movie starring Bella Thorne, Mae Whitman and Alison Janney will be released on DVD in Summer 2015.

This book is part of a book series called Hamilton High .

This book has been graded for interest at 13-18 years.

There are 352 pages in this book. This book was published 2015 by Hachette Children's Group .

Kody Keplinger was born and raised in a small Kentucky town. She wrote her first novel, The DUFF (Designated Ugly Fat Friend) when she was only 17.