Totaled 4 volumes of textbooks. Each book consists of 12 lessons, for one-term or one-year study. Each lesson includes 5 parts as vocabulary, texts, explanations, grammar and cultural tips. Book I. and Book II. focus on the traditional Chinese culture and Book III. and Book IV. focus on current Chinese society. Accompanied with pictures and photos and explained in simple Chinese character, traditional Chinese character, pinyin and English translation, all the texts are interesting and practical to use.