In this, her first book, Simard brings readers into her world, the intimate world of the trees, in which she brilliantly illuminates the fascinating and vital truths–that trees are not simply the source of timber or pulp, but are a complicated, interdependent circle of life; that forests are social, cooperative creatures connected through underground networks by which trees communicate their vitality and vulnerabilities with communal lives not that different from those among humans. Simard writes how trees, living side by side for hundreds of years, have evolved, how they learn and adapt their behaviors, recognize neighbors, compete and cooperate with one another with sophistication, characteristics ascribed to human intelligence, traits that are the essence of civil societies–and at the center of it all, the Mother Trees: the mysterious, powerful forces that connect and sustain the others that surround them.