Editing David Crystal (section)

== Work ==
Crystal has authored, co-authored, and edited over 120 books on a wide variety of subjects, specialising among other things in editing reference works, including (as author) the ''Cambridge Encyclopedia of Language'' (1987, 1997, 2010) and the ''Cambridge Encyclopedia of the English Language'' (1995, 2003, 2019), and (as editor) the ''Cambridge Biographical Dictionary'', the ''Cambridge Factfinder'', the ''Cambridge Encyclopedia'', and the ''New Penguin Encyclopedia'' (2003).<ref name="camb" /> 

Crystal has also written plays and poetry.<ref name="DCbooks">{{cite web | url=http://www.davidcrystal.com/books-and-articles/creative-writing | title=David Crystal Books & Articles | publisher=www.davidcrystal.com | access-date=22 May 2015}}</ref> He has published several books for the general reader about [[linguistics]] and the English language, which use varied graphics and short essays to communicate technical material in an accessible manner.<ref>{{cite web|url=http://www.crystalreference.com/David_Crystal/books.htm|title=David Crystal: Books in chronological order|publisher=Crystal Reference|year=2005|archive-url=https://web.archive.org/web/20080514172551/http://www.crystalreference.com/David_Crystal/books.htm|archive-date=14 May 2008|url-status=dead}}</ref> In his article "What is Standard English", Crystal hypothesises that, globally, English will both split and converge, with local variants becoming less mutually comprehensible and therefore necessitating the rise of what he terms World Standard Spoken English (see also [[International English]]).<ref name="WISE">{{cite web | url=http://www.davidcrystal.com/?fileid=-4008 | title=What Is Standard English | publisher=davidcrystal.com | access-date=22 May 2015}}</ref>

In his 2004 book ''[[The Stories of English]]'', a general history of the English language, he describes the value he sees in linguistic diversity and the according of respect to varieties of English generally considered "[[nonstandard dialect|non-standard]]".<ref name="SoE">{{cite book | last=Crystal | first=David | title=The Stories of English | date=2004 | publisher=[[Penguin Books]] | isbn=0-713-99752-4 | author-link=David Crystal}}</ref> In 2009 Routledge published his autobiographical memoir ''Just a Phrase I'm Going Through: My Life in Language'', which was released simultaneously with a DVD of three of his lectures.<ref name="PopMat">{{cite web | url=http://www.popmatters.com/review/112015-just-a-phrase-im-going-through-my-life-in-language-by-david-crystal/ | title=Just A Phrase I'm Going Through : My Life in Language David Crystal review | work=[[PopMatters]] | date=29 September 2009 | access-date=22 May 2015 | last=Balik | first= Rachel}}</ref> His book ''Spell It Out: The Curious, Enthralling and Extraordinary Story of English Spelling'' (2013) explains why some English words are difficult to spell.<ref name="guardSpell">{{cite web | url=https://www.theguardian.com/books/2012/sep/14/spell-it-out-david-crystal-review | title=Spell It Out by David Crystal – review | work=[[The Guardian]] | date=14 September 2012 | access-date=22 May 2015 |last=Leith | first=Sam | author-link=Sam Leith}}</ref> His companion book, ''Making a Point: The Pernickety Story of English Punctuation'' came out in 2015 from Profile Books (UK) and St. Martin's Press (US).

Crystal is a proponent of a new field of study, [[Internet linguistics]], and has published ''Language and the Internet'' (2001) on the subject.<ref name="guardInternet">{{cite web | url=https://www.theguardian.com/education/2001/jan/25/tefl.guardianweekly | title=Weaving a Web of linguistic diversity | work=[[The Guardian]] | date=25 January 2001 | access-date=22 May 2015 | last=Crystal | first=David | author-link=David Crystal}}</ref> Crystal's book ''[[Txtng: The Gr8 Db8]]'' (2008) focused on [[text language]] and its impact on society.<ref>[https://www.theguardian.com/education/2008/sep/16/academicexperts.languages ''Gr8 db8r takes on linguistic luddites''], ''The Guardian''. 16 September 2008.</ref> He was one of the book series editors of The Language Library.<ref>[https://www.publishinghistory.com/the-language-library-andre-deutsch.html The Language Library (Andre Deutsch) - Book Series List], publishinghistory.com. Retrieved 25 February 2023.</ref><ref>[https://www.worldcat.org/search?q=se%3AThe%20Language%20Library%20/%20edited%20by%20David%20Crystal se:The Language Library / edited by David Crystal], worldcat.org. Retrieved 25 February 2023.</ref>

From 2001 to 2006, Crystal served as the Chairman of Crystal Reference Systems Limited, a provider of reference content and Internet search and advertising technology. The company's iSense and Sitescreen products are based upon the patented Global Data Model, a complex [[semantic network]] that Crystal devised in the early 1980s and was adapted for use on the Internet in the mid 1990s. These include semantic targeting technology (marketed as iSense by ad pepper media) and brand protection technology (marketed as SiteScreen by Emediate ApS).<ref name="semant">{{cite web | url=https://www.bloomberg.com/research/stocks/private/person.asp?personId=12544822&privcapId=12519587&previousCapId=76570006&previousTitle=SubHub%20Ltd. | title=Executive Profile David Crystal O.B.E | work=[[Bloomberg Business]] | access-date=22 May 2015}}</ref> The iSense technology is the subject of patents in the United Kingdom and the United States. After the company's acquisition by Ad Pepper Media N.V., he remained on the board as its [[R&D]] director until 2009.<ref>{{cite web|url=http://www.crystalsemantics.com/|title=Crystal Semantics: About Us|access-date=15 October 2007}}</ref>

Crystal was influential in a campaign to save Holyhead's [[convent]] from demolition, leading to the creation of the [[Ucheldre Centre]].<ref name="uch">{{cite web | url=http://www.ucheldre.org/story.htm | title=The Ucheldre Story | publisher=www.ucheldre.org | access-date=22 May 2015 | archive-date=4 April 2015 | archive-url=https://web.archive.org/web/20150404094647/http://www.ucheldre.org/story.htm | url-status=dead }}</ref>