Abrahamic religions "Abrahamic traditions" has been challenged. In 2012, Alan L. Berger, Professor of Judaic Studies at Florida Atlantic University, in his Preface to "Trialogue and Terror: Judaism, Christianity, and Islam after 9/11" wrote that there are "commonalities", but "there are essential differences between the Abrahamic traditions" both "historical and theological". Although "Judaism birthed both Christianity and Islam", the "three monotheistic faiths went their separate ways". The three faiths "understand the role of Abraham" in "differing ways", and the relationships between Judaism and Christianity and between Judaism and Islam are "uneven". Also, the three traditions are "demographically unbalanced and ideologically diverse". Also
University of Religions and Denominations of Religions and denominations among the specialized libraries allocated to the study of religions, Which are so few in number, the library of the University of religions and Denominations is claimed to be the outstanding one. Containing an excellent supply of books and periodical in Persian, Arabic and English, this library is considered to be one of the richest libraries nationwide. Resources are mainly on Islamic denominations, Christianity, Eastern religions and interdisciplinary studies. The library of this university houses books on Islamic sects, Christianity, Judaism, Hinduism, Buddhism, primitive religions etc. There are also Islamic, Christian, Jewish and Zoroastrian Encyclopaedias. This