A reference work is a document, such as a paper, book, encyclopedia or periodical, to which one can refer for information. The information is intended to be found quickly when needed. Such works are u
The Brockhaus Enzyklopädie, the best-known traditional reference book in German-speaking countries
The Lexikon des Mittelalters, a specialised German encyclopedia
Encyclopædia Britannica, 15th edition: volumes of the Propedia (green), Micropedia (red), Macropedia (black), and 2-volume Index (blue)
Wikipedia is a free online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the wiki software MediaWiki. Founded by Jimmy Wales an
Reference work
…printed, reference works are often available in electronic formats, including reference software, CD-ROMs, DVDs, and online access via the Internet. Wikipedia, an online encyclopedia, is both the largest and the most-read reference work in history. In many public and academic libraries, reference books are…
American journalist John Seigenthaler (1927–2014), subject of the Seigenthaler biography incident
Sue Gardner, first executive director, in 2013 at Wikimania
Wikipedia Monument in Słubice, Poland, by Mihran Hakobyan (2014)