The preface to Caotang Collection is the preface to Li Bai's works, and the author is Li Yangbing, Li Bai's uncle. The preface introduces Li Bai's life experience, main deeds, creation and the process of Li Bai's collected works.
2. "Send Li Twelve White and Twenty Rhymes".
The author of Send Li Twelve White Rhymes is Du Fu, a contemporary friend of Li Bai. This poem aims at defending the unfortunate experience of Li Bai in his later years and depicting his extraordinary life. The famous sentence in the poem is: Once upon a time there were fanatics called fallen immortals. Put pen to paper shocks the wind and rain, and poetry becomes tears.
3. Biography of Li Bai.
Biography of Li Bai is from Biography of Literature and Art in the New Tang Dynasty. The Book of the New Tang Dynasty is a biographical history book written by Ouyang Xiu, Song Qi, Fan Zhen and Lu in the Northern Song Dynasty.