The author Han Shiping introduces the history and culture of the 20 gates of Beijing. In an amusing way, he explains Beijing culture of Neijiu (the nine gates of inner Beijing city), Waiqi (the seven gates of outer Beijing city) and Huangchengsi (the four gates of the Imperial City). The book is a Chinese-English bilingual edition with notes and audios. With the help of exquisite drawings and illustrations of large-scale scenes, it carries forward Beijing culture in multi-dimensions. It also leaves readers who love Beijing culture something to cherish and inherits the memory of Old Beijing through the way children like.