Diary of a Journey to the North of Yi Hai is an essay by Dai Mingshi, a scholar in Qing Dynasty. The author's daily experiences and feelings during his trip from Nanjing to Beijing are very rich: descriptions of scenery and customs along the way, descriptions of places of interest and historical sites during the trip, records of friendship with friends, analysis of the situation of mountains and rivers, descriptions of fatigue and hardship during the trip, worries about the national economy and people's livelihood, and revelations of traitors and treacherous court officials taking the opportunity to extort money; It seems that a picture scroll is gradually unfolding, and finally a colorful picture scroll of vast social life is displayed in front of readers. The style of writing is also eclectic, with short narrative and delicate description; Sometimes express feelings, and sometimes outline characters; There are things you don't think are detailed, and if there is nothing, you will pass by; Handy and easy to use, it shows the author's skillful writing skills.