What is the theme of dead is so last year?

"Dead is So Last Year" is a young adult novel by Marlene Perez, and its main theme revolves around mystery and the supernatural. The book follows a teenage girl named Daisy who can communicate with the dead and solves mysteries with her psychic abilities. The theme explores the idea of embracing one's unique talents and using them to help others. Additionally, it delves into the complexities of friendship and loyalty in the face of danger and uncertainty.