Jago born 12 November 1979 is a children's book illustrator based in St Mabyn, Cornwall, UK. He has produced digital illustrations for a variety of publishers, Barefoot Books http://www.barefoot-books.com/uk/site/pages/artists.php?aid=205 Barefoot Artists page, Oxford University Press http://www.oup.com/uk/catalogue/?ci=9780192791306 Oxford University Press Catalogue http://www.oup.com/uk/catalogue/?ci=9780192725691&view=oxed Oxford University Press Catalogue, Mantra Lingua http://www.mantralingua.com/media.php?media=book&cid=35&id=264&cid=35&page_offset=0 Mantra Lingua Catalogue http://www.mantralingua.com/media.php?media=book&id=240 Mantra Lingua Catalogue http://www.mantralingua.com/media.php?media=book&cid=35&id=165&cid=35&page_offset=0 Mantra Lingua Catalogue,, Zondervan http://www.zondervan.com/Cultures/en-US/Authors/Author.htm?ContributorID=Jago&QueryStringSite=Zondervan Zondervan Artists page .

The name Jago is etymologically related to James, the name of two of Christ's disciples, via the late 12th century, Middle English vernacular form of the Vulgar Latin Jacomus, altered in turn from the high Latin Jacobus (Jacob). Whilst the Welsh form of James was Iago, in another Celtic language, Cornish, James becomes Jago.

Jago enables the creation of 2D game-like simulations using Java. Jago is specifically designed to support writing simulations for Java programs written for Lego Mindstorms robots, but Jago can be used for any kind of game or simulation.