Be it the passing scenery, or the collective memory that has always accompanied us, “Ding Ding” not only brings with it the road travelled by the Hong Kong people across the century, but also carries the traditional culture and the spirit of Hong Kong. The author has collected more than 200 precious photos and relevant literature to concisely and gently present the history of tram development And little known trivia on the production and anecdotes. Most of the photos in the book have never been published, aiming to share with tram fans and like-minded friends. On both the history of and the tenderness one gets from the love of trams.