What is notebook made out of?

A notebook is typically made from several components, including paper, which can be made from wood pulp or recycled materials, and a cover that may be made from cardstock, plastic, or leather. The binding can vary, with options like spiral, stitched, or glued. The paper may come in various weights and textures depending on its intended use, such as lined, blank, or grid formats. Additionally, some notebooks may include features like perforated pages or pockets for added functionality.