The document discusses the Common European Framework of Reference for Languages (CEFR) developed by the Council of Europe to provide a common basis for describing language learning, teaching and assessment across Europe. It describes the CEFR's six levels of proficiency from A1 for beginners to C2 for mastery. It also outlines the CEFR's approach to classifying language skills into domains and communicative activities, and provides examples of "can do" statements describing what learners should be able to do at each level.