The first single-topic annual conference on hepatology in Japan was held in November 2002 to discuss therapies for viral hepatitis and the prevention of hepatocellular carcinoma (HCC). Bringing together researchers and clinicians from North America, Europe, Japan, and other parts of Asia, the conference included symposia on the hepatitis C replicon system, new antivirals that lower or prevent the incidence of HCC, and transplantation in cases of hepatitis B and C, as well as new treatment modalities for viral hepatitis and preventative measures for HCC. With the rising number of HCC cases worldwide, this collection of papers presented at the conference provides a valuable, up-to-date resource and reference for all professionals involved in the treatment and prevention of viral hepatitis and hepatocellular carcinoma.