IELTS (International English Language Testing System) is a widely recognized test that measures the language proficiency of people who want to study or work in an English-speaking environment. It assesses a person’s ability to use and understand the English language in four main areas: listening, reading, writing, and speaking. The test is designed to reflect real-life situations and is used for academic, professional and migration purposes.

The IELTS test is divided into two versions: Academic and General Training. The Academic version is intended for those who want to study at the undergraduate or postgraduate level, while the General Training version is intended for those who want to work or train in an English-speaking country.

The IELTS test is scored on a scale of 0-9, with 9 being the highest score possible. The test results are usually valid for 2 years. There are over 1,600 test centers in over 140 countries, and test takers can take the test on a regular basis.

Overall, IELTS is a widely accepted and recognized test that helps people demonstrate their English language proficiency to potential universities, employers, and immigration authorities. It’s an efficient tool to evaluate the language skills of non-native speakers.