In The Peregrine Profession Per-Olof Grönberg offers an account of thepre-1930 transnational mobility of engineers and architects educated inthe Nordic countries 1880-1919. Outlining a system where learningmobility was more important than labour market mobility, the authorshows that more than every second graduate went abroad.Transnational mobility was stronger from Finland and Norway thanfrom Denmark and Sweden, partly because of slower industrialisationand deficiencies in the domestic technical education. This mobilityincluded all parts of the world but concentrated on the leadingindustrial countries in German speaking Europe and North America.Significant majorities returned and became agents of technologytransfer and technical change. Thereby, these mobile graduates alsobecame important for Nordic industrialisation.