Longman 9000 !new! -

Research indicates that understanding roughly allows a learner to comprehend the vast majority of authentic English texts. The Longman 9000 identifies these core words based on a rigorous statistical analysis of the Longman Corpus Network , a massive database of 390 million words from diverse spoken and written sources.

The Longman 9000 system has several features that make it an effective tool for IELTS preparation: longman 9000