The study is a critical review dealing with the nature of information resources that may contain objectionable or dangerous materials and may hurt the feelings of the library's readers. It also discusses the role of library managers in deciding what is to be prohibited of these materials and the ethical responsibility they must consider in defending the society against these materials . There are some procedures that the libraries must cases in which these rights are violated and how to resist this behavior . It finally provides some suggestions aiming at limiting the effects of these materials on the readers and restricting the free access to the harmful materials .