Even before a global pandemic introduced us to terms like social distancing, loneliness was already becoming the defining condition of the twenty-first century. But it's also one we have the power to reverse. Combining a decade of research with first-hand reporting, Noreena Hertz takes us from a 'how to communicate in real life' class for smartphone-addicted university students to bouncy castles at Belgian far-right gatherings, from 'renting a friend' and paying for cuddles in the U.S. to nursing home residents knitting bonnets for their robot caregivers in Japan. Packed with bold solutions that we can apply at home, at work and in our neighbourhoods, and with a clear vision for what businesses and governments must do, she explores how our increasing dependence on technology, radical changes to the workplace and decades of policies that have placed self-interest above the collective good, are making us more isolated than ever before. Noreena Hertz helps us to understand why this is the lonely century, how we got here and what each of us can do to help reduce loneliness for ourselves and our communities.