Beginning with the publication of The Chocolate War in 1974, and continuing throughout the entirety of his career, Robert Cormier dared to disturb the universe. The moment Jerry Renault refused to sell his first chocolate bar Robert Cormier began a life-long career that would push the boundaries of traditional young adult literature. He would go on to prove again and again that a YA novel could be both realistic and unflinchingly honest. And that fiction for teens could be great literature. In this book YA librarian and Cormier biographer Patty Campbell explores each of Cormier's books for young readers. From the boundary breaking modern classic The Chocolate War and the award-winning I Am the Cheese, to the tender Frenchtown Summer and the shocking and disturbing Tenderness, Campbell's literary analysis illuminates why Robert Cormier has been called the single most important writer in young adult literature. And how his work has touched generations of young readers' hearts and minds, daring them again and again to disturb their own universe.