Air traffic controllers are professionals responsible for ensuring the safe and efficient movement of aircraft in the sky and on the ground. They communicate with pilots, providing instructions for takeoff, landing, and navigation. Their primary goal is to prevent collisions and manage air traffic flow, especially in busy airports and airspace. To perform their duties, air traffic controllers use radar and other technology to track aircraft positions. They work in control towers at airports or in area control centers, coordinating with other controllers and agencies. Their role is crucial for maintaining safety in the aviation industry, which includes commercial airlines, private jets, and cargo flights.