The document introduces the Common European Framework (CEF), which provides a common basis for designing language courses and assessing proficiency across Europe. It aims to promote mutual understanding and mobility. The CEF describes what learners need to know and do to communicate effectively in a language. It also defines levels of proficiency to measure progress. The CEF seeks to overcome barriers between different educational systems and ensure efforts meet learners' needs. It enhances transparency and cooperation, and facilitates recognition of qualifications across contexts.