Up to 11 percent of American kids have attention-deficit hyperactivity disorder (ADHD). The disorder can make getting along at home very difficult, and getting through the school day even worse. Fortunately, there are ways to treat this issue and start living a more normal day-to-day life. The lives of millions of kids are affected by mental illness. And yet it's all too common for kids to feel like they are alone with their problems. Whether you're seeking information for family, friends, or yourself, these books help explain the challenges faced by people with mental disorders.