Young-adult fiction or young adult literature (often abbreviated as YA), also juvenile fiction, is fiction written, published, or marketed to adolescents and young adults. The Young Adult Library Services (YALSA) of the American Library Association (ALA) defines a young adult as someone between the ages of twelve and eighteen. Authors and readers of young adult (YA) novels often define the genre as literature as traditionally written for ages ranging from twelve years up to the age of eighteen, while some publishers may market young adult literature to as low as age ten or as high as age twenty-five. The terms young-adult novel, juvenile novel, young-adult book, etc. refer to the works in the YA category. YA literature shares the following fundamental elements of the fiction genre: character, plot, setting, theme, and style. However, theme and style are often subordinated to the more tangible elements of plot, setting, and character, which appeal more readily to younger readers. The vast majority of YA stories portray an adolescent, rather than an adult or child, as the protagonist. The subject matter and story lines of YA literature are typically consistent with the age and
Contributions by Mike Klaassen, LegitimateAndEvenCompelling, and Jmabel.