A notebook is a collection of pages bound together, often used for writing, drawing, or taking notes. It can come in various sizes and styles, from simple lined pages to graph paper or blank sheets. Many people use notebooks for school, work, or personal journaling, making them a versatile tool for organizing thoughts and ideas. Notebooks can be made from different materials, such as paper or recycled products, and may feature colorful covers or designs. Some popular types include spiral-bound, composition, and leather-bound notebooks. They are often paired with writing instruments like pens or pencils for a complete writing experience.