What is the main content of the Book of the Later Han Dynasty?

The Book of the Later Han Dynasty is a biographical history book that records the history of the Eastern Han Dynasty compiled by Ye Fan, a historian of the Southern Song Dynasty. It is also called "the first four histories" with Historical Records, Hanshu and The History of the Three Kingdoms. The book is divided into ten chapters, eighty biographies and eight records (from Sima Biao's Continued Han Shu). The book mainly describes the historical events of *** 195 from the first year of Jianwu (25 years) of Emperor Guangwu of the Eastern Han Dynasty to the 25th year of Jian 'an of Emperor Xiandi of the Han Dynasty (220 years). The History of the Later Han Dynasty mostly followed the ready-made styles of Historical Records and History of the Han Dynasty, but in the process of writing, Ye Fan made some innovations and changes according to the specific characteristics of the history of the Eastern Han Dynasty. The books of the later Han Dynasty are well-structured and orderly arranged. For example, biographies of eighty biographies are generally arranged in chronological order. The first three volumes are the man of the Han Dynasty. The next nine volumes are emperors, generals and important generals in Guangwu era. The progressiveness of the Book of the Later Han Dynasty is also reflected in the courage to expose dark politics, sympathize with and praise justice. In Biography of Zhong Changtong Wang Chong and Wang Fuchuan, Ye Fan collected eight articles attacking current politics in detail.