Abstract
A remarkable progress has been observed in the representation of nautical charts issued by the Hydrographic Office of Japan as well as by several foreign hydrographic offices. The author reviews the progress focussing on the following points 1. Present status of chart publication by various foreign hydrographic offices. 2. Latest foreign charts and their representation. 3. Recent chart representation of the Japanese charts. 4. Recent problems in chart construction. 5. An ideal status of chart representation which is readily realizable at present.
