IELTS is an international standardized test of English language proficiency that is accepted by universities and employers worldwide. It measures ability in listening, reading, writing and speaking. There are two versions - academic, for university entrance, and general training, for work or immigration purposes. Each section is scored and a band score from 1-9 is given. Proper preparation is important, with a focus on developing test-taking skills like scanning, skimming and time management. Strong writing involves clear organization, examples and adherence to word counts. Listening requires understanding question types and circling key details. Speaking evaluates fluency and ability to discuss topics. Regular practice tests help maximize scores on the four IELTS components.