Mobile libraries are collections of books arranged in vehicles and so staffed as to provide a library service capable of being directed to communities which are often though not exclusively, rural. They are used by some municipal and many country library systems in the Bangladesh. In many areas abroad they are making notable contribution to the development of library services particularly in large parts of Asia, Africa and Middle East. There is a distinction between mobile branch libraries and traveling libraries. The mobile branch library is a medium-to-large vehicle with a shelf stock of upwards of 100000 books used over reasonably good roads to serve villages and town