Individual sheets of paper bound together within a cover constitute the fundamental components of a codex. These components, numbered and often printed on both sides, present the content, whether text or images. For example, a novel comprises numerous such sheets containing the narrative.
These individual units facilitate the organization and consumption of information in a sequential manner. Historically, their development marked a significant advancement from scrolls, enabling easier navigation and referencing. The ability to turn individual pages greatly improved accessibility and portability, contributing to the widespread dissemination of knowledge and literature.