A bookmobile or mobile library is a large vehicle esigned for use as a library. They are designed to hold books on shelves so that when the vehicle is parked the books can be accessed by readers. They usually have sufficient space that people can also sit and read books inside them. Mobile libraries are often used to provide library services to villages and city suburbs without library buildings. They also service those who have difficulty accessing libraries, with retirement homes being common stops. They may also carry other information or computer equipment, such as might be found in a library. Some libraries also use their bookmobiles to deliver materials, such as audio books and large print novels, to homebound patrons who don't have anyone to go to the library for them.