The use of pens (like ballpoints, which I use) in art is continuing to be recognised by wider audiences and even starting to be studied. For the past few years I’ve had many art students from GCSE to degree level contact me for help with their essays & projects. I even had someone from a museum contact me once to ask very technical questions on ballpoint art. It’s great to know it’s being slowely written into history, as when I started using pens (early 1990s) there was no information out there.
Anyway, an interesting article on the short history and contemporary use of pens in art has just been published (in which I’m honoured to have been referenced) which you can view here.