Uncle John is in the hospital because he's sick. But he doesn't have a tummy ache, sniffles, or a fever. So... what KIND of sick is Uncle John? In this tender conversation between a mother and son, the child is trying to understand his uncle's invisible illness. His mother explains how Uncle John's bipolar disorder affects his behaviour, that it doesn't make him a scary person, and how their family can continue to love and support him. What Kind of Sick Is Uncle John? models how to talk with young children about mental disorders so that they can grow up being more comfortable supporting loved ones with mental health issues.