The book focuses on the two genres of biao (a literary style like prose) and qi (a literary style like preface), which were most frequently used by literati in the Northern Song Dynasty, had the highest quantity of works, and can best reflect the creative techniques and overall style of the Song Dynasty’s parallel prose creation. Through discussions on their historical inheritance, stylistic characteristics, developmental processes, and influence on later generations, the book aims to comprehensively showcase the diverse artistic aspect of the parallel proses of the Northern Song Dynasty.