Is a category of fiction published for readers in their youth. YA books are catered towards readers from 12 to 18 years of age. While the genre is targeted to teenagers, approximately half of YA readers are adults. It's a category of fiction published for readers in their youth. Subject matters and the genres of YA correlate with the "age and experience" of the protagonist and subsequent supporting characters, typically facing "real world" problems as the story progresses. The genres available in YA are expansive and similar to those found in adult fiction genres. Common themes related to YA include: friendship, first love, relationships, and identity. Stories that focus on the specific challenges of youth are sometimes referred to as problem novels.