 Journalist Hassan Hassan, writing in "The Guardian", reported an ISIL-affiliated cleric as saying that "Management of Savagery" is widely read among the group's commanders and some of its rank-and-file fighters.It was also mentioned by another member of ISIL in a list of books and ideologues that influence the group.Al-Qaeda in the Arabian Peninsula has been described by The Jamestown Foundation as following Naji's guidelines in Yemen, while the book has been mentioned positively in interviews with members of Somalia's Al-Shabaab.