This report focuses on a critical concern for the European Training Foundation's (ETF's) partner countries and other countries of the around the world. Skills mismatch is recognised as a major challenge by policy makers, practitioners and social partners, as it is often associated with dynamic social and economic contexts such as restructuring processes, changing trade patterns, technological progress, demographic change or negative social aspects (e.g. informality, long-term unemployment, inactivity). In 2017, the ETF launched a project on skills mismatch measurement in the ETF partner countries. Its objective was twofold: to identify available data sources and to test a series of indicators capable of capturing various angles and implications of skills mismatches. Seven ETF partner countries were included in the two phases of the project (2017 and 2018): Egypt, Georgia, Moldova, Montenegro, Morocco, North Macedonia, and Serbia. Country-specific analyses were developed to contextualise the skills mismatch measurement for each country and to analyse the insights gained from each of the indicators that were calculated. This report complements the country analyses and findings and highlights commonalities across countries. Moreover, the report delves into methodological aspects with a view to possibly replicating the skills mismatch measurement and analysis in other ETF partner countries, and embedding this analytical capacity in national policy development.