Born in Hiroshima. Keizo Matsui is a member of Tokyo ADC (Tokyo Art Directors Club), AGI (Alliance Graphique Internationale). He is Dean/Professor of Osaka University of Arts Junior College, Department of Design Arts and Science. He is a member of 3D & Flat-Lab. (A creative group that makes wonders of hand brain)

Art Director, designer and artist Keizo Matsui is known for works that draw people in with his uniquely authentic vision and playful style. He has won the ICGRADA award at International Biennial of Graphic Design in Bruno and Golden Bee award at Golden Bee Global Biennale of Graphic Design. He has also won awards in design competitions around the world, such as the New York ADC Awards and Tokyo ADC awards, and has been invited around the world as an international jury member in art and design competitions. His solo exhibitions include Germany, Mexico, Czech Republic, Russia, Hong Kong, and Japan. Many of his poster works are exhibited in permanent collections in museums in many countries such as France, Switzerland, Germany and the US. In particular, his early poster work ""Official Announcement To A Tragedy"" was included in the permanent collection of  the New York Museum of Modern Art - MoMA - in 1980.

Keizo Matsui's flair for international trends, combined with his deep experience in design management and marketing, gives him a unique approach to graphic design that has enabled Keizo Matsui to collaborate with a very diverse range of clients such as Japanese government PR, Kansai International Airport and a number of globally known companies. In 1987, his functional yet beautiful design work, "an attache-case style paper package box" was published in GRAPHIS magazine and impressed Steve Jobs, the founder of Apple Inc., so much that it led to a collaboration in which Keizo Matsui worked with the Apple corporate design group to develop the Apple packaging design, the so-called “white box”. He has a reputation for visionary work in futuristic design and design-driven strategies that helps create universal products and new business trends.