Information literacy is the ability to identify needed information, understand how information is organized, locate the best sources for a given need, evaluate sources critically, and share information. It involves knowing commonly used research techniques. Information literacy is important because it allows people to effectively sort through vast amounts of information from various sources that may differ in quality and reliability. Information can be organized by genre, subject, format, or how it is produced for popular versus scholarly audiences. Primary sources are original materials, while secondary sources discuss or interpret primary sources. The best resources for academic research are primary sources and scholarly sources because they are credible, useful, reliable, and relevant.