Industrial designers do at least two types of sketching. The first is the messy kind where we're "thinking out loud," problem-solving technical details or quickly trying to explain a concept to a colleague. The second is the stuff we'll actually let clients see, which typically has to be a bit more polished. Because with the latter, whether you're using a Wacom or a Prismacolor, the goal is the same: You're trying to tell the client a story and/or persuade them of the soundness of your approach.
In Sketching, Product Design Presentation, a new book out this month, two pros discuss this latter breed of drawing. Koos Eissen runs the Industrial Design Engineering freehand and digital drawing classes at Delft University of Technology, and Roselien Steur, who runs design sketching workshops for professionals, lectures at the Royal Academy of Arts in The Hague. In the video below Steur explains precisely what's in the book and why you might want to read it, and as she covers everything from the reptilian brain to rhetoric, you feel you're in good hands: