Rather than putting forward any ground-breaking or revolutionary ideas, Lewis Wolpert here prefers to gather together a selection of scientific examples and quotes from other thinkers on the subject to form a straightforward explanation of why it is in human nature to believe, whether that means to believe that throwing a rock might hurt somebody or to believe that there are forces beyond what science has shown us to be fact.
The sections about child development compared to the learning processes in other animals is interesting reading, as did the section about the effect religious hope has been seen to have on hospital patients and their health.
The truly interesting parts of this book are often the results of the various experiments that Wolpert cites as examples, rather than Wolpert's collection opinion.
However I'm an atheist and it is to this book's credit that I ended up feeling a little more sympathetic to people who have religious beliefs, not to say that I agree with them but at least I now have some reason to understand *why* they might be inclined to believe against the odds and against the evidence.
Wolpert keeps things brief, covering a variety of different topics without exhausting any of them. This book might leave you wanting to find some more intensive reading into one particular aspect.