While many institutions such as the Museum of Modern Art in New York have acquired Matsunaga posters, few collections, besides that in Munich, include his work in packaging.

CNN: JAPAN'S HIDDEN PERSUADERS

The two-year-old startup, which is headquartered in Stockholm and has offices in New York and Shanghai, uses eye-tracking technology to gauge the effectiveness of print and online ads, packaging designs and website and store layouts.

FORBES: Eye-Tracking Study Finds iPhone, iPad Draw More Attention Than Android Devices