A. The earliest libraries that we know about were different from present-day libraries, as their contents were mainly government records.  Archaeological findings from ancient cities of Sumer revealed temple rooms full of records of commercial transactions, or inventories.  Things were much the same in the government records of Ancient Egypt.  The earliest private or personal libraries containing both non-fiction and fiction books appeared in classical Greece.

C. Many visitors to libraries do not know how to use the library effectively.  This can be because they are shy and embarrassed to ask questions, or because they are not used to libraries.  These problems were behind the library instruction movement in the US., which encourages library-user education.  In fact, library instruction has been practised in the U.S. since the 19th century.  

D. Managing a library involves tasks such as planning what new books to buy, designing classification systems, preserving materials (especially rare and fragile manuscripts) and developing library computer systems.  Long-term tasks include planning library extensions and developing community services such as adult literacy programs.  

E. In North America, among other countries, libraries in poor communities are relatively expensive to run, but arguably less important to the community than essential services, such as police, firefighters, school, and health care.  At any rate, many communities are beginning to feel they have no option but to close down, or reduce their library services to balance their budgets.