Does The Book of Rites have anything to do with Confucius?

There is a connection between the two.

The Book of Rites is one of the Confucian classics, and it is a collection of Confucian essays on rites from the Warring States to the Qin and Han Dynasties. This paper mainly records and discusses the etiquette system, etiquette and Confucian etiquette in the pre-Qin period, which reflects the political, philosophical and ethical thoughts of Confucianism.

Confucius, the founder of the Confucian school, has deeply studied and expounded etiquette. He believes that etiquette is the foundation of governing the country and keeping the country safe, and it is also an important embodiment of personal cultivation. Confucius expounded the meaning, function, classification and practice of etiquette in the Book of Rites, which provided important information for future generations to understand and learn Confucianism.