ESCO (European Skills, Competences, Qualifications and Occupations) is the European multilingual classification of Skills, Competences and Occupations. ESCO works as a dictionary, describing, identifying and classifying professional occupations and skills relevant for the EU labour market and education and training. Those concepts and the relationships between them can be understood by electronic systems, which allows different online platforms to use ESCO for services like matching jobseekers to jobs on the basis of their skills, suggesting trainings to people who want to reskill or upskill etc. ESCO provides descriptions of 2.942 occupations and 13.485 skills linked to these occupations, translated into 27 languages (all official EU languages plus Icelandic, Norwegian and Arabic). The aim of ESCO is to support job mobility across Europe and therefore a more integrated and efficient labour market, by offering a “common language” on occupations and skills that can be used by different stakeholders on employment and education and training topics. ESCO is a European Commission project, run by Directorate General Employment, Social Affairs and Inclusion (DG EMPL). It is available in an online portal and can be consulted free of charge. Its first full version (ESCO v1) was published on the 28th of July 2017. The latest version of the classification can be downloaded or retrieved through the ESCO API. The ESCO skills pillar distinguishes between i) skill/competence concepts and ii) knowledge concepts by indicating the skill type. There is however no distinction between skills and competences. Each of these concepts come with one preferred term and a number of non-preferred terms in each of the 28 ESCO languages. ESCO as well provides an explanation (metadata) for each skill profile such us a description, scope note, reusability level and relationships (with other skills and with occupations). The skills pillar provides a comprehensive list of knowledge, skills and competences relevant to the European labor market. It contains 13.890 concepts structured in a hierarchy which contains four sub-classifications: Knowledge Language skills and knowledge Skills Transversal skills More information on www.esco.ec.europa.eu.