"Nick & Norah's Infinite Playlist" is a young adult novel written by Rachel Cohn and David Levithan. The story follows two teenagers, Nick and Norah, who meet by chance in New York City during a wild night filled with music and adventure. They embark on a journey through the city's vibrant nightlife, exploring their feelings and the complexities of relationships. The narrative is unique as it alternates between Nick's and Norah's perspectives, providing insight into their thoughts and emotions. The book captures the essence of youth, love, and the power of music, making it a relatable read for many adolescents.