I listened to the audio book which Dan narrates (and a very good job he does too). Each chapter focuses on one person, or event or group of people (in the case of the three dads). All are truly inspirational in either overcoming obstacles to make a success of their life or finding a way to deal with their grief which benefits others. So many of the stories are extremely moving, and most will probably be familiar from the media/news.
Dan's approach is both sympathetic and enquiring. I was left with the feeling that he really cares about the people he is talking to. As well as background insight alongside the dialogue, there are also humorous insights from behind the scenes, particularly from the Strictly dance chapters, where he was a celebrity contestant.
Some (not all) of the stories are tragic and just so saddening but overall these are stories of optimism and hope and are uplifting and inspiring and show amazing strength of character. The subject of forgiveness in the face of such awful atrocity has its own chapter with Dan talking to people about their religious beliefs and why they have chosen to forgive rather than live a life of bitterness and hate.
It's not necessary to have read the first book, Remarkable People to get the most from this one. Dan does revisit a few people mentioned in the first book with an update on their lives since he last spoke to them and how they are progressing either personally with a particular cause.
Heroes don't always wear capes.