"Peace, Love, and Cupcakes" is the first book in "The Cupcake Club" series by Sheryl and Carrie Berk. The book focuses on Hayley, a new student who loves baking cupcakes, as she navigates making friends and dealing with school challenges. When Hayley's family moves, she finds solace in baking and decides to start a cupcake club to connect with others. The story addresses themes of friendship, self-acceptance, and the importance of being true to oneself.