This article is a perineal favorite of mine. The attention to detail impresses me every time I see it. I honestly knew nothing of silverpoint drawing before this, and I’ve found it to be a fascinating topic. If you’re not familiar with silverpoint, the short version is that you use silver wire to draw on specially prepared paper; but if you’re interested, you really should check out this article.
Article: Getting Started with Silverpoint Drawing
Humanities Scholars 