Automobile library, or "mobile library" or "mobile library", mainly provides auxiliary services for district-level libraries located in densely populated areas, and extends library services to newly developed areas and remote areas without fixed libraries. Residents who love reading often sigh: "Home is far from the library, and it takes a lot of time and money to go there. It is best to drive the library to the door. " "Car Mobile Library" regularly delivers books to readers' doorsteps, so that readers can see the latest and most complete books nearby.