: Based on the General Service List of English Words , rising to roughly 3,000 words.
Enter the classic, time-tested series: . Known affectionately among teachers as the "blue books" (or red/yellow/green, depending on the edition), this four-volume course— Books 1, 2, 3, and 4, complete with audio —remains one of the most effective pathways to English fluency ever published. essential english for foreign students -books 1-2-3-4 audio-
Highly recommended for self-study learners & beginners : Based on the General Service List of