Humble Pi: When Math Goes Wrong in the Real World by Matt Parker

This is a very interesting book about the link between human fallibility and the exactness of math, programming, statistics. How simple unchecked errors caused both disasters as well as funny mistakes. An example - Between 1993 and 2008, the police in Germany were searching for the mysterious "Phantom of Heilbronn" - a woman who'd been linked to 40 crimes. There was actually a 300,000 Euro bounty on Germany's "most dangerous woman". It turned out that she merely worked in the factory that made the cotton swabs used to collect DNA. Correlation does not equal causation...