Ben Light puts forward an alternative way of thinking about how we engage with social networking sites, going beyond the emphasis upon connectivity that has been associated with research in the area to date. Analysing our engagements and disengagements with social networking sites in public (in cafes and at bus stops), at work (at desks, and photocopiers and whilst cleaning), in our personal lives (where we cull friends and gossip on backchannels) and as related to our health and wellbeing (where we restrict our updates), he emphasises the importance of disconnection instead of connection. The book, therefore, produces a theory of disconnective practice. This theory requires our attention to geographies of disconnection that include relations with a site, within a site, between sites and between sites and a physical world. Attention to disconnectors, as human and non-human is required, and the modes by which disconnection can occur can then be revealed. Light argues that diversity in the exercise of power is key to understanding disconnective practice where social networking sites are concerned, and he suggests that the ethics of disconnection may also require interrogation.