This is a book that attempts to show how fear has played a significant role in the history of humankind. It is a step by step history of the world and how 'Fear' has provided religions, states, rulers, autocrats, institutions, groups, societies, activists and individuals to exert power and influence over others, by preying on anxieties. It depicts how fear can manipulate others and events, fear mongering, creating scapegoats, spreading misinformation and developing conspiracy theories.
There really in nothing particularly earth shatteringly new in this concept, employed as a tool by the Church, tyrannical regimes, and the establishment for millennia, and promoted by Machiavelli as far back as the 16th century.
There is no doubt that 'fear' and the loss of life, freedom, well being, possessions etc is far more powerful than 'hope' or potential gain, and therefore is utilised to 'move and motivate people', usually in negative ways.
That said, fear can not only be negative and harmful, but also very positive and helpful. The key is to determine whether what we fear is actually real or fake. Fear can help us to avoid, flee or take appropriate actions for our welfare, when it is real and present. It can also be debilitating and costly when it has been manufactured or over emphasised and in the absence of empirical evidence. eg keeping children at home all the time vs giving them freedom due to fears of abuse, or fears of flying when the accident ratio is so low, or fears of mass immigration as in Brexit.
I think these elements could have been covered in much more details than they were ie positive fear vs negative fear and how the serve or undermine us.
Another criticism would be of the rather biased take on industrialisation, capitalism and globalism, which whilst imperfect, have clearly improved the lives of billions across the world, not least the 'bottom billion poorest'. It is the naive romanticism of being a pre industrialisation agricultural worker or maybe a hunter gatherer which is unhelpful. My ancestors were agricultural workers, working from dawn to dusk under feudal lords, with little or no freedom, poor health and life expectancy, and no wealth - not great at all!!
The author is right to highlight the threats of populism, polarisation of politics, and the impacts of freedom of speech, but tends to so again from a left leaning basis, critical of the populist right but without mention of the disastrous socialist experiments of the populist left (Cuba / Venezuela / Argentina, Tanzania, Zimbabwe etc etc)
On balance he is right to show that we as humans are driven, susceptible and to some extent attracted by 'fear', which leaves us prey to the unscrupulous, the manipulative, the deceitful and now to the algorithms, but he says little about how we should or could combat the growing challenges we face, and how we can determine the 'real fears' from the semantic ghosts which increasingly plague us.
Good as far as it goes, but could have gone much further, with maybe less detailed history and more detailed analysis?