Please do not add spam links to websites, as you did in "Graphic arts". Wikipedia is not a place to advertise. You are, however, encouraged to add information instead of links to the encyclopedia. If you think the links you recently added should be added to an article, please discuss this on an article's talk page. See the welcome page to learn more about Wikipedia. Thanks. MathXplore (talk) 11:18, 15 February 2023 (UTC)