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. Bicycle Kingdom & Other Stories belongs to the Turquoise Level of the series and is designed for low-intermediate level learners. The vocabulary amount is limited to the most commonly used 1,000 Mandarin Chinese words.

A Nice Lady in Shanghai is part of the four-level Tian Tian Zhongwen series, a carefully graded Mandarin Chinese language reader series for upper-elementary to upper-intermediate Chinese language learners. The book contains a selection of 20 colorful and enjoyable stories and articles about China. A wide range of topics is covered, including modern China, ancient fables, history, culture, lifestyle, the Chinese language and more. Besides gaining a greater insight into China, the stories help learners increase their Chinese reading and Simplified Chinese character recognition skills through meaningful and stimulating contexts. Each illustrated story contains vocabulary boxes with translations of difficult vocabulary, a Language Points section explaining key grammar used in the story, and comprehension questions to check students' understanding. The book is packaged with an audio CD containing recordings of each story, as well as English language translations to aid understanding. A Nice Lady in Shanghai belongs to the Turquoise Level of the Tian Tian Zhongwen series, and is designed for low-intermediate level learners. The vocabulary amount is limited to the most commonly used 1,000 Mandarin Chinese words.