Milan with a Basket tells of the period Cheng spent in Milan studying in a design school. Soap College depicts a homemaker's efforts to take business classes from an American online university. Mayflower Monastery documents her impetuous purchase of an old monastery, including the entire renovation and move-in process. Throughout all of her books, her vivid descriptions of Germany's bureaucracy bring a smile to readers 'faces.
《提著菜籃上米蘭》是鄭華娟到義大利米蘭設計學院進修的故事，《肥皂大學忙線中》講述家庭主婦如何在美國線上大學修讀商學院課程，《五月花修道院》則記錄她一時衝動買下修道院古宅，從整修到入住的整個過程，書中對德國的種種繁瑣「秩序」有著令人莞爾的精彩描寫。