I was also wondering, is there a good book with instruction and examples of a more emotive/expressive style of rendering, so less based on geometrical rules and more about capturing feelings/emotions/values/experiences?
This is a crucial skill to have in exploratory phases for products where aesthetics are very important, like automotive, footwear, perfume bottles, fashion, cosmetics etc.
How to Draw: Sketchbooks by Render Demo. You follow along the simple instructions and sketch right inside over top of guidelines and templates. Topics include DRAWING FUNDAMENTALS, SUPER HEROES, CARS, FIGURES and ATHLETIC SHOES. There are even plastic stencils for each book. Mark Kokavec also offers instructional video tutorials on drawing, sketching and rendering techniques.
