The Extreme English Basic course is a set of 2,200 basic words and expressions most commonly used in the English language. This course includes vocabulary items required for the following exams: Cambridge Young Learners of English (YLE) at all levels: Starters, Movers and Flyers, and Cambridge Key English Test (KET). This vocabulary range is necessary to communicate easily at A1 and A2 levels, according to The Common European Framework of Reference for Languages. With the use of the vocabulary at these levels, the learner can easily describe basically all the meanings in a given language. Mastering this set of vocabulary items allows the learners to understand the spoken and written language and to talk about basic everyday topics.