Abu Shama dates in his book for a period of half a century, extending from the year 540 AH to the year 589 AH, and this era includes the two states: the light led by Nur al-Din Zangi (511-569 AH), and the authority of the authority that Salah al-Din set its rules until his death in 589 E. Abu Shama follows in the book the achievements of Noureddine and Salah al -Din, talking about various topics related to the state and wars such as: the transfers of armies, the descriptions of weapons, the description of battles, forts and warships, as well On the battles, whose book is a source of its sources, due to its collection and keenness to tab it. The value of this book is the nature of the historical authorship in that era based on transportation and plural.