The main logo of project is a graphic with the numeral 15, based on which a family of 100 sub-logos are created. From Quipu- Knotted strings for information collection in prehistoric civilization to the advent of AI era, each sub-logo conveys a story, crucial invention or initiative of mankind. In chronological order, this logo family represents the history of communication technology. For the 15th anniversary of the School of Communication, ECNU, the whole branding design is in tribute to not only the discipline, the practice, and the development of communication, but also the human wisdom.