At a time when practical guides to the Montessori Method are proliferating, here's the one Maria Montessori herself designed for "entering families", written in Spanish in 1939 (supporting an earlier 1914 version in English). Unpublished in French, this historic version has nonetheless retained all its topicality. In this manual, which is not only practical, Maria Montessori also presents the philosophy behind her pedagogy, recalling its ultimate goal: to serve Peace. Indeed, she insisted that education was the best weapon for Peace, and that to achieve it, it was necessary to consider the child as the guide of his or her education. Who better than the child himself knows what is good for his own development? A unique feature of this manual is that it is the only one illustrated with Maria Montessori's personal photos. The translator has made every effort to reproduce these carefully selected photos in full color. The comparison of historical black-and-white photos with contemporary ones clearly shows that, despite the century that has passed since the first "Maison des Enfants" opened, and despite all the evolutions of the method, which is neither static nor backward-looking, the essentials have remained the same.