Libraries in ancient Egypt are usually located in temples or palaces, which are part of temples or palaces. In the 2nd century BC, the Pagama Library was connected with the Temple through the colonnade. The library buildings in ancient Greece and Rome are dominated by stones, and the memorial hall supported by stone pillars is the main body in the center of the internal space, with lighting at the top and colonnades around it. The halls, niches and colonnades are decorated with sculptures, murals and portraits. Tall bookcases and shelves stand against the wall. The library also pays attention to moisture protection to preserve papyrus documents. During the Middle Ages in Europe, libraries were severely damaged, and independent library buildings basically disappeared. Only temples and churches have libraries, and short bookshelves are vertically arranged on both sides of a strip space with a passage in the middle, with church benches between them. During the Renaissance, the Royal Library and the University Library still collected and read in the same space. The architectural design of the Royal Library strives to be magnificent and unforgettable, while the university library pays attention to practicality. There is usually a paragraph in the middle, with books on both sides. /kloc-in the middle of 0/9th century, libraries began to adopt closed shelf management. According to the function, the building is divided into three parts: book collection, reading and book processing, and there is a central hall library with multiple stacks, such as the British Museum Library built by 1852 (see color map). 1854 When the French National Library was expanded, stacks and books were added. After this form, the architectural model with fixed functions has gradually formed. The New York Public Library built in 19 1 1 is the representative of this model. In addition to the mixed structure, this mode is generally centered on the multi-layer stacks with independent structures, and the reading, file arrangement and management spaces are distributed around, and most of them take the shape of a patio composed of strip spaces, fully collecting natural light and using natural ventilation.