dialogues. "The Chinese Primer" is available in two versions, one using the GR system of romanization, which employs different spellings instead of diacritical marks for different tones, the other using Pinyin romanization. The contents of the four volumes are as follows: (1) Blue Book ["Lessons"]: Introduction; foundation work on pronunciation; lesson dialogues in romanized Chinese and English; appendices; glossary-index. (2) Red Book ["Notes and Exercises"]: Vocabularies; grammar notes and culture notes keyed to the lessons; exercises. (3) Yellow Book ["Character Workbook"]: workbook. (4) Green Book ["Pinyin Character Text"]: Texts of the lessons in both traditional and simplified Chinese characters, and a Chinese introduction for teachers. The first three volumes: Blue Book, Red Book, and Yellow Book are sold as a set (GR Set or Pinyin Set). In addition, the GR Blue Book ["Lessons"], GR Red Book ["Notes and Exercises"], and GR Yellow Book ["Character Workbook"], alongwith the Pinyin Green Book ["Pinyin Character Text"], along with the Pinyin Green Book ["Pinyin Character Text"] are sold separately. The GR Audio and video materials are available from the Chinese Linguistics Project at Princeton University for use with this text. These suppleme