The author of the book, the Arab Islamic thinker, Ahmed Amin, deals with the life of the Caliph Harun al -Rashid, a main subject in his book, which is the most famous and most knowledgeable successor among the Abbasid era among people. Al -Rashid reviews in a lines at first, then he touches the birth of the Abbasid state and its upbringing after the fall of the Umayyads, and then deals with that The state of the state in the era of Harun al -Rashid, and the social system during his reign. The book singled out Baghdad during the reign of Al -Rashid, then literature and writers, where he approached his councils, poets, writers and scholars, and he talked about the Brameka and their tragedy when the caliph turned against them, and he was exposed to poetry and singing during his reign, and he talked about his relationship with the kingdoms of Europe, and the precious gifts he presented to the European Emperor Charlemagne, Which reflected what the Arab civilization reached at the time. This is why it was achieved in the era of the Renaissance of the renaissance and literary, as the foreign trade movement flourished and the political relations between the caliphate and the kingdoms of Europe have been growing. He went to the novels of "One Thousand and One Nights" and its impact on the fame of the Rashid at the West, and its portrayal of the extravagance of the life in which the palaces of the caliph were known.