Tian Tian Zhongwen is a carefully graded, four-level Chinese reader series for upper-elementary to upper-intermediate Chinese language learners. Each book in the series contains 20 stories and the series is graded into one of four levels: Gold, Turquoise, Violet and Rose. Teahouses in China and other stories belongs to the Violet Level of the Tian Tian Zhongwen series, and is designed for intermediate level learners. The vocabulary amount is limited to the most commonly used 2,000 Mandarin Chinese words.