Fake news. Alternative facts. Conspiracy theories. Misinformation is one of the defining problems of our age, and despite what we may think, we are all susceptible. So how and why does misinformation spread? And, more importantly, what can we do about it? Sander van der Linden, a Cambridge University professor and leading expert, takes us through the psychology of conspiratorial thinking and equips us with the tools needed to help stop the spread of misinformation once and for all.