Bibliotherapy is one approach, intending to not only help students learn and develop new social skills, but also to experience validation and insight into their own thought processes and emotions. Books can be used to help people with broad range of personal problems, including emotional, physical, and developmental. This study explores the effectiveness of bibliotherapy as an intervention on improving aggressive behavior of fifth graders children with emotional and behavioral disorders. Participants were ten children aged eleve, attended two primary schools in Nasr City; namely Al Sayedia Primary School , and Al Farouk Primary School. A pre-post design was used to examine the effectiveness of bibliotherapy as an intervention on improving aggressive behavior of fifth graders children with emotional and behavioral disorders. Findings from this study advocated for the effectiveness of bibliotherapy as an intervention on improving aggressive behavior of fifth graders children with emotional and behavioral disorders.