"Ruby at School" is a fascinating book written by psychologist and educator Mary Elizabeth Paul. In this book, the author explores important aspects of children's education at school, paying special attention to the interaction between teachers, parents and students. "Ruby at School" not only provides advice on raising and teaching children, but also inspires readers to think about the meaning of interaction within the educational environment. This book will be a useful resource for anyone interested in the psychology of learning and child development.