A whiteboard is a smooth, glossy surface used for writing or drawing with dry-erase markers. It is commonly found in classrooms, offices, and meeting rooms, allowing users to easily share ideas and information. The writing can be wiped off with a cloth or eraser, making it reusable and convenient for various purposes. Whiteboards come in different sizes and can be mounted on walls or used as portable boards. They are often used in conjunction with other tools, such as projectors and flip charts, to enhance presentations and collaborative work. Their versatility makes them a popular choice for brainstorming sessions and teaching.