Sketching the Materials exercise over the years.
How I sketched my Materials before any Sketchbook Design courses whatsoever!
I’m currently working in a Stillman and Birn square softcover 7.5-inches. I’m mostly using the Rotring Isograph Fineliners with Rapidiograph Ink. I also use my TWSBI fountain pens, of course. This is the watercolor palette I’ve been using for ages. Keeping it simple. And since I’m also doing a lot of measuring so far, my new favorite pencil for that is the Tombow Mono100 in 3H. It goes on smoothly, and erases easily.
Jamie's Sketchbook 