In the form of one city and one story, this book will travel across the land of China and use the most popular language to tell the historical changes, customs, and market fireworks of cities in various places. Without piling up words or pretending to be profound, it will help you understand the past and present of each city, and feel the diverse charm of the land of China. This book will be told in six volumes: North China, Northeast China, East China, Central South China, Southwest China, and Northwest China.