The document summarizes the Common Reference Levels of language proficiency established by the Council of Europe. It provides 3 sentences describing each level from A1 to C2: A1 is described as a basic ability to communicate simply. A2 involves dealing with direct information and expressing oneself in familiar contexts. B1 focuses on giving and understanding information about daily life and interests. B2 involves the ability to discuss topics within one's field of interest. C1 describes the capacity for clear descriptions on complex topics. C2 involves dealing with cognitively demanding academic material and using language effectively.