Liquid Paper is a correction fluid used to cover mistakes made while writing or typing. It was invented in 1951 by Bette Nesmith Graham, a secretary who wanted a quick way to fix errors on documents. The fluid dries quickly to create a smooth, white surface that can be written or typed over. The product is typically applied with a small brush or a pen-like applicator. Liquid Paper is popular among students, office workers, and anyone who needs to make corrections on paper. It has become a staple in many workplaces and is available in various forms, including pens and tape.