When we offer this type of book, one can expect two things: either the extraordinary revelations about a close and discreet association, is accurate and complete facts about the functioning of the association. It is in this second perspective that I acquired the book Irene Mainguy. I have not been disappointed. If the spirit of this type of association persists over centuries, thanks to the specific organization and accepted by the meeting and the relationship between its members focus group, shared power and temporally limited, respect of individual, up to the friendliness ... and ideas can be discussed in an open and cooperative manner, without fear of coercion competitive ... It remains to keep the attention of every day against the spirit of clan!