A Review of the Population Map Series in *The National Atlas of Japan*

Summary

This paper provides a systematic introduction and evaluation of the population map series in the *National Atlas of Japan*, aiming to serve as a reference for thematic cartography and population mapping. Through descriptive analysis, the study examines the series’ composition, thematic content, and cartographic techniques. The population series comprises 25 main maps, 9 inset maps, 114 statistical charts, and accompanying texts, covering population distribution, composition (age, gender, household, occupation), and dynamics (natural change and social migration). Key findings highlight several merits: the content is rich, spanning 15 themes; classification is highly detailed, with choropleth maps employing up to nine classes and multiple statistical units from city to village level; diverse representation methods are skillfully integrated, notably the innovative use of triangular graphs combined with qualitative area symbolism to reveal structural trends; statistical graphics, especially population pyramids, substantially enhance expressiveness and facilitate historical comparison; place names are printed on transparent overlays to reduce map clutter while maintaining legibility; and printing quality is excellent. A notable shortcoming is the absence of maps depicting ethnic composition. The analysis concludes that the Japanese population map series exemplifies sophisticated atlas design, offering valuable insights for producing comprehensive population atlases, though inclusion of ethnic composition would further strengthen its completeness.