"Planet High School" is a novel by Chris Crutcher that explores the challenges and experiences of high school students. The story is set in a fictional high school where various characters navigate issues such as friendship, identity, and personal growth. The narrative highlights the struggles of adolescence, including peer pressure and the quest for acceptance. Through its relatable characters, the book addresses important themes like mental health, family dynamics, and the impact of societal expectations on young people. Overall, it provides a realistic portrayal of life in high school.