king of Mosul Badr al-Din Lu'lu' (1218-1259), contributing to the prosperity of the region and the emergence of a rich cultural background. It is also in this city the class of wealthy merchants were likely to order such works. The manuscripts still conserved today correspond to the end of this period of prosperity, the first half of the fourteenth century. The Arab society present at that time showed a great interest in theatrical shows and particularly in puppets and shadow theatre. The appearance of the characters depicted in the miniatures are reminiscent of the figurines from these shows. In addition, the epoch featured a great enthusiasm for the sessions or Maqamat al-Harīrī, tales featuring a jester character to whom many adventures happen. The combination of these elements of interest may explain the commissioning of illuminated manuscripts of this text. It also explains the birth of a new genre of painting, representing realistically the details of daily life contemporary to the painter of the illustration. Finally, this emergence of the image is also explained by the weakening of the ban on figurative representation in the arts during this period. One of the most famous centers in the Arab world was the Baghdad School, also known as the Arab school, it was a relatively short-lived yet influential center of Arab art developed during the late 12th century in the capital Baghdad of the ruling Abbasid Caliphate. The movement had largely died out by the early 14th century, five decades following the invasion of the Mongols in 1258 and the downfall of the Abbasids' rule. Fatimid Caliphate (909–1171) Another example are the Fatimids who fueled a renaissance in Arabic figurative arts, thus developing a stylized and distinct style. The prevalence of books within the Fatimid empire was demonstrated by the existence of the , or the House of Knowledge. In 1045 CE, the was reported to contain 6,500 volumes of scientific and literary subjects. When the Fatimid dynasty dissolved during the twelfth century, the libraries and collections of books that existed in Cairo were dispersed, making it difficult to locate any complete manuscripts. Only fragments of text and paper are able to provide information of the content and style of Fatimid manuscripts. It is rare to have an example of both text and illustrations of the same page, which makes it difficult to gather information about illuminated manuscripts. In some cases, it is