Collapse
In Guns, Germs & Steel, Jared Diamond showed how and why civilisations unfolded differently across the globe. In Collapse, he uses a five-point framework to analyse why different civilisations collapsed. He cites examples from the past and then examines modern societies, their challenges and what leads civilisations to make disastrous decisions. Not an easy read, and the depth of research sometimes overwhelms, but an insightful read.