Alexandre Gefen, member of the ICLA theory committee, has co-edited, with Sandra Laugier, the book Le Pouvoir des liens faibles (The Power of Weak Ties). Published by CNRS Éditions, the volume reconsiders Mark Granovetter’s concept of weak ties to address intersubjective relations in the era of new social media, new urban spaces, a new environmentalism, and a new notion of the commons. The contributions are organized into four parts: “The Knowledge of Weak Ties,” “The Politics of Weak Ties,” “Forms of Attachment,” and “Weak Ties and Intimacy.”