CAN Bus (Controller Area Network Bus) is a specialized skillset that involves the design, implementation, and maintenance of a communication protocol used in vehicles and other embedded systems. It enables electronic devices to communicate with each other and exchange data in real-time, providing vital information for various functions such as engine management, safety systems, and entertainment systems. Professionals with this skillset possess a deep understanding of the underlying hardware, software, and network architecture required to implement and maintain robust, reliable, and secure CAN Bus systems.