A bibliography is an alphabetical list of all sources used in an essay or research paper. It gives credit to ideas and materials borrowed from other sources to avoid plagiarism. A bibliography shows sources were not stolen but borrowed, and proves the work is not plagiarized. It also provides additional information for readers who want to learn more. Teachers require bibliographies and will deduct points from grades without one. The document provides examples of bibliographic citations for different source types like books, websites, encyclopedia articles, and magazines. It demonstrates the basic bibliographic format of indenting lines after the first and using italics for titles.