1000 Basic English Words is a four-level series designed to enhance the vocabulary of beginner level learners. All of the words presented over the four books of the series provide learners with over 1,000 practical, high-frequency English words. All of the words chosen for the series come from an analysis of the most commonly found words in textbooks and materials for English language learners. 1000 Basic English Words provides an excellent foundation for EFL learners wanting to build a strong vocabulary.