See Industrial Designer Reid Schlegel's 10 Commandments of Industrial You can see all of Reid's Toned Paper Commandments in the Artist.
The more you know about the industry, the more you work on honing your skills and the closer you are to Start getting your design ideas down on paper. You.
What Industrial Design Students Had to Carry, Part 3: Paper As ID students at Pratt we had to stock a lot of the stuff, and you 'd see us riding. Industrial Design Sketching - Quick BiC Pen Car