Codex

A codex refers to an early form of books for written texts, that replaced scrolls, where sheets are stacked, folded, and bound along one edge to form pages. Unlike scrolls, a codex allows writing on both sides of the page and enables direct access to specific sections without continuous unrolling. This format supports pagination, indexing, and the collection of multiple texts into one volume. Codices became especially important for preserving lengthy works, organizing complex material, and supporting study, transmission, and comparison of texts across communities.