Here are just a few scans from my sketchbook. Most of the stuff here is done with just straight pencil and paper, although I have been experimenting with charcoal and other thicker graphite pencils. Nothing too fancy here, just trying to nail down the basics of traditional art and its principles.
Canson 9″x12″ 50lb Sketch Paper
Pentel GraphGear 500 Automatic Drafting Pencil
Royal & Langnickel 2B Graphite Pencil