Kawamura became a leading force in the alternative movement known as “hetauma” (so bad that it’s good), which came to exert a powerful influence on the history of illustrative art, and he attracted widespread attention with his abundant output of works. He has been especially active in the realm of music, where his contributions have ranged from cover illustrations for Music Magazine (previously titled New Music Magazine) to art direction and illustration for Bad News magazine, to contributing heavily to the spread in popularity of salsa music in Japan. Meanwhile Kawamura has also created a wealth of highly memorable works in the field of advertising, for clients including the Japan Racing Association (JRA) and Nikka Whisky.