There is a good version of the new intensive German course series. This series is specially prepared for students who actually study German. The courses inside are quite scientific and reasonable, from shallow to deep. This set of books has been popular for many years and reprinted many times. This series is specially prepared for students who study practical German. The courses in it are quite scientific and reasonable, from shallow to deep. This book has been selling well for many years and reprinted many times. Matching listening tapes and MP3 recordings can be downloaded online, which is very convenient. This is definitely the best in German textbooks, and even some of the internal German training textbooks of New Oriental are cutting-edge plagiarism.