Useful web sites
https://laingartgallery.org.uk/
http://www.artcyclopedia.com/
http://www.tate.org.uk/
https://www.royalacademy.org.uk/
http://www.nationalgallery.org.uk/
http://courtauld.ac.uk/gallery/about
http://www.comptonverney.org.uk/
www.googleartproject.com