The Stranger on the Bridge (2018)

In 2008 Jonny Benjamin stood on Waterloo Bridge in London intending to end his life, until a passing stranger stopped and talked him down. Six years later a campaign to find and thank that man went viral and tracked him down: Neil Laybourn, who contributes to the book. It is about how Jonny reached the bridge as much as the rescue, and it shows the plain truth this list rests on: one ordinary conversation can change everything. A strong read for anyone who worries they would not know what to say.