Guo Xuzhong is a relatively obscure author in the Chinese-language book market, with limited publicly available information; only one of his works is currently included in our catalog. Judging from his representative work, Bai Juyi: Tears for the Common People in His Writing, Peace of Mind amid Clouds and Waters, Guo's writing focuses on the life and thought of the Tang dynasty poet Bai Juyi, a subject at the intersection of Eastern philosophy and classical literature. The title highlights Bai Juyi's concern for ordinary people and his satirical engagement with politics through the phrase "tears for the common people in his writing," while "peace of mind amid clouds and waters" echoes his later years in Luoyang, where he turned to nature and a quieter life. This suggests that the author seeks to portray Bai Juyi in full, between engagement with the world and withdrawal from it. The work is classified under Eastern philosophy, indicating that it goes beyond biography to explore questions of life choices and spiritual peace. Since Guo Xuzhong's nationality, dates, education, and other biographical details cannot be verified, this introduction makes no guesses about his background; readers may regard him as a popular writer who takes classical figures as his subject and interprets traditional literati spirit through this single work.