Twelve people on the move around planet Earth, twelve individual lives, each in turmoil, and each in some way touching the next. In this nuanced and deeply moving sequence, David Szalay's diverse protagonists circumnavigate the world in twelve plane journeys, from London to Madrid, from Dakar to Sao Paulo, to Toronto, to Delhi, to Doha, en route to see lovers and parents, children and siblings, or nobody at all.  Along the way, Szalay deftly depicts the ripple effect that, knowingly or otherwise, a person's actions have on those around them, and invites us to consider our own place in the vast and delicately balanced network of human relationships that is the world we live in today.