Product innovation and design, this could also be applied to any field that involves design.
FURNITURE DESIGN - FREELANCE FOR IQLABELS 2013 by Marc TRAN, via Behance
Puiforcat Zermatt cutlery, stainless steel | Artedona.com
product sketch by Sangwon Seok, via Behance
I.D. Sketching & Marker Rendering on Behance
Marker rendering is used in this illustration to communicate the objects perception through denser shading at the edges of the bottle compared to the white centre, creating a curving impression.