This document discusses the history of libraries from ancient times to the modern era. It describes how papyrus and parchment were early materials used for writing before the development of the codex or bound book. The printing press was invented in the 15th century by Johannes Gutenberg, making books more widely accessible. Melvil Dewey developed the decimal classification system and helped establish modern librarianship. Andrew Carnegie funded the construction of over 3,000 libraries across America and abroad in the late 19th/early 20th century. Mobile libraries first emerged in the early 20th century to increase access to books in rural areas.