There is an explosion of self-directed tracking on smartphones and wearables. A whopping 110 million wearable sensors shipped in 2016. This session is a book talk by the authors of an “essential knowledge” book published this year by MIT Press, Self-Tracking, which Science magazine called “excellent” and “nuanced.” The authors show why such data often falls flat, and what some people are doing to get beyond the “10,000 step” rut. In this session you’ll learn why communities are crucial for getting meaning from data and why people sometimes hack these devices in ways at odds with how they were designed. You’ll learn about why this matters for making the data from your wearable devices work for you and your goals.