Chef

A chef is a person who cooks food as their job. They usually work in restaurants or hotels.
Full explanation
The chef is responsible for everything about the food in a restaurant. He is responsible for buying the food, hiring and supervising the kitchen workers, creating the menus for the customers, and deciding the recipes (the details of how the cooking is done). Some chefs are trained and some are not trained.
The sous-chef (sometimes called an assistant chef) is the chef's main helper. A chef de partie is a 'line chef', in charge of a station in the kitchen. The commis chef works under a chef de partie. It is usually a training position.
The lines or stations in a big kitchen are:
Chef Media
Gordon Ramsay, British celebrity chef
Jiro Ono regarded as one of the greatest sushi chefs in the world.
Nancy Silverton chef and baker known for her expertise in bread-making and pastry.