The series Graded Readers for Chinese Language Learners is composed of 50 books, divided into three subseries, namely folktales, literary stories and historical stories, corresponding to Levels 1-3 respectively. 
 
Song Jiang tells the story of Songjiang, an obliging man who was forced to join the Liangshan rebels after a series of incidents. Song Jiang was friends with Chao Gai and others on Liangshan. His letters with them were discovered by his concubine Yan Poxi, who tried to take this opportunity to blackmail him. Song Jiang killed her out of desperation and ran away to take refuge. When visiting his friend Hua Rong, Song Jiang was framed and therefore decided to go to Liangshan leading the forces of Qingfeng Mountain. However, having fallen for a trick played by his father, he went home and was punished by the royal court with a facial tattoo and banishment to Jiangzhou. One day when he was drunk, Song Jiang wrote a “rebellious” poem, which was taken advantage of by Huang Wenbing and for which he was given the death penalty. Thanks to Chao Gai and the group he led, Song Jiang was rescued and went to Liangshan. After Chao Gai died, Song Jiang set his mind on being recruited by the government. After being recruited, most of the Liangshan heroes died. Song Jiang and his sworn brother Li Kui also died from poisoned wine and had a tragic ending.