IELTS is an English language proficiency test jointly owned by the British Council, IDP: IELTS Australia, and Cambridge ESOL. It tests all four language skills - listening, reading, writing, and speaking - and provides an overall band score and individual scores for each section. IELTS is recognized by over 10,000 organizations in over 140 countries as an indicator of English language ability. Over 2 million tests are taken annually by candidates seeking to study or work where English is the language of communication.