Render Demo is the latest DVD by Dwayne Patterson a GM designer. In this video you will find great tips to improve your sketching abilities with lots of demos.
You will lern about prospective, line work and shading. You will understand how to place correctly the light on your sketch and how to do to make it look great!
For sure a good help for all of you specially those that do not follow a specific Transportation Design school.
Check it out!
Info Via Designertechniques.com