Some of Sibai's works became best-sellers. Some of his novels were adapted into films, which were described by critics as more important than the novels themselves. However, the importance of his work began to decline especially when
Naguib Mahfouz's work started to draw most of the critics attention. Although many critics avoid referring to his work as the end of the
Romantic Era in Egyptian literature, as it touches upon the needs of a specific age group of young readers. In the introduction to his book
Yusuf Sibai: The Knight of Romanticism, Mursi Saad Eddin mentions that Sibai was not just a romantic writer but one who expresses a political and social vision in his depiction of the events in
Egypt. In addition, Abdel Karim says that his role in the Egyptian culture is of no less importance than his role as a writer and refers to the description of the late Egyptian critic
Muhammad Mandur that Sibai "is not a writer who isolates himself in an ivory tower, but a man who goes to markets and walks through alleys and streets". Yusuf Sibai is held as a phenomenon in the Egyptian cultural life. However, critics avoid dealing with his work save literary historians. Nowadays, the mention of his name is only limited to the film adaptations of his work, including "I'm going away", "Give Back My Heart", "In the ruins", "We Do Not Sow Thorns", "The Land of Hypocrisy" and "Al Saghamat". The Egyptian Television also produced a TV series about his life entitled Fares Ar-Romancia "The Romantic Knight". == Assassination ==