The IGU Commission on National Atlases was established at the International Geographical Congress in Rio de Janeiro in 1956, with the Soviet cartographer K. A. Salishchev as its first chair. Its purpose was to encourage national-atlas production, improve quality, and make maps from different countries more comparable. At its first plenary meeting in Moscow and Leningrad in 1958, it set three basic tasks: systematic study of existing and planned national atlases, a bibliography of national atlases and related literature, and advice to atlas-producing institutions. At the Stockholm Congress of 1960, concrete results had been achieved in all three areas and four new priorities were proposed for the next four years: harmonising the content and legends of key maps in national atlases, studying regional atlases, considering an international series of physical maps, and keeping national atlases up to date.
At the 1962 Budapest session, the commission pushed standardisation further, established four working groups on population maps, systematic reviews, explanatory texts, and industrial statistics, and began work on a minimum programme for developing countries. At the 1964 London meeting, it became a permanent IGU commission and presented its first systematic study of regional atlases. The programme also expanded to agricultural, transport, and water-resource mapping. At the Paris and Lyon meeting of 1966, complex urban atlases emerged as a new field, and working groups on commerce and atlas indexes were added.
Renamed the Commission on National and Regional Atlases at the 1968 New Delhi Congress, it examined social and economic mapping in complex atlases and, at UNESCO’s request, prepared recommendations on the themes, organisation, and methods of atlases of natural conditions and resources for developing countries. At the 1970 Madrid meeting, it called for recommendations on urban atlases and closer cooperation with the ICA. Satellite imagery and computer-assisted mapping also came into view, together with the longer-term idea of a thematic atlas of the world. By the 1972 Montreal Congress, its programme extended to resource assessment, environmental protection, territorial planning, and forecasting, while a major methodological study focused on natural-environment mapping.
After 1972, Salishchev stepped down and was succeeded by Edgar Lehmann of the German Democratic Republic. At the 1974 Leipzig meeting, environmental mapping emerged as a major new concern, alongside proposals for cross-border atlases. A 1976 report pointed toward computer cartography, loose-leaf atlases, a revised guide to atlas preparation, and comparative studies of urban and metropolitan atlases. It also recorded the commission’s rejection of a proposed merger of the IGU and ICA bodies, while supporting closer cooperation between them. The IGU commission ended that year, and its environmental work continued in 1977 through the new IGU–ICA Joint Working Group on Environmental Atlases.