A sheet of paper is a flat, thin material made from cellulose fibers, typically derived from wood pulp. It is commonly used for writing, printing, and drawing. Paper comes in various sizes, weights, and textures, with standard sizes including A4 and Letter. The production of paper involves several steps, including pulping, pressing, and drying. It can be coated or uncoated, affecting its finish and suitability for different uses. Paper is an essential item in offices, schools, and homes, serving as a medium for communication and creativity.