This publication focuses on a topic of critical concern for policy-makers in recent years: skill mis-match. Cedefop has been active in skill mismatch research and analysis for almost a decade now, identifying significant areas of concern and contention surrounding the issue, including clarification of key concepts. It has also engaged in original data collection and analysis, resulting in several publications. Most prominently, in spring 2014 Cedefop undertook the first European skills and jobs survey (ESJS), a large-scale primary data collection of about 49 000 adult employees in 28 EU Member States. This report summarises many of the insights gained by closer empirical scrutiny of this new European data set.