On both counts the book delivers. Having recently been pitched to at work by a media tracking agency and nearly taken the bait (didn't in the end) I immediately recognised the use of reciprocity and scarcity to try and harry me into signing up. That alone was worth buying the book for, and I will definitely use that insight in future.
In addition, the chapter on consistency is also very useful. I've been involved in trying (and failing) to get people behind certain campaigns in the past. As such the discussion about getting people to make small commitments to establish a self image which they then feel the need to act consistently with both rang true on a personal level, and seems like something worth trying out in future.
So why only three stars? For one I did not find elements of the book convincing. The section dealing with newspaper coverage of suicides is the bit that really troubles me. Some of the data seems both to be limited and have been interpreted quite loosely. I would need a lot more convincing that the stats are being interpreted reasonably, it looks far too rough and ready. Given that this book is really about behavioural biases surely it should be extra careful about interpretaion of data as this is something we humans tend to be very bad at, always looking for patterns that aren't there and so on. That then leads me to query the hypothesis built on top of the data and to be honest I find myself not buying it. That also makes me query whether other chapters suffer from similar flaws.
Secondly, the book isn't actually that useful once you get your head around the key techniques because, as a previous reviewer says, simply having the knowledge that you have biases doesn't make them go away. To be really useful the book should have spent as much time reinforcing ways to resist the influence of biases as it does explaining what they are.
That said it is very readable, and I got what I wanted from it, but it could have been better.
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