It is a book that I recommend to anyone wishing to learn about the Arab world, Islam and the mechanisms operating / financing of terrorism. After 30 years working for the DGSE, the author, speaking Arabic in addition, knows whereof he speaks and he speaks very good! It gives the possibility of introducing the reader to the world / very different culture of the Western world, which remains subject too often misinformation distorting prism of TV news, a reference book on the subject.