Digital technologies are becoming ever more integrated into our daily lives. Wearable devices, big data and the Internet of Things are poised to create a myriad of personalised services in health, wellness, commerce and leisure. These will have the potential to deliver huge benefits to society, but there are real and growing concerns they could open the door to Big Brother. Starting with the simplest atoms of behaviour, Data to Life covers a remarkable breadth of topics: the significance of daily rituals, a taxonomy of everyday life and tools for behaviour change. It presents a radical new roadmap for collecting and handling personal data that protects the interests of both individuals and businesses.