This is a book about the history of the caliphs, the leaders of the believers who served the nation from the time of Abu Bakr Al-Siddiq, may God be pleased with him, to the author's era, ordered chronologically from the first to the last.

The author, Imam Al-Suyuti, may God have mercy on him, mentions in the biography of each caliph the significant events during their days and the prominent religious leaders of the time.

The author notes the motivation for writing this book was the need for comprehensive biographies of the nation's prominent figures, which is appreciated by scholars.