Far too many of us, argues Gerd Gigerenzer, are hampered by our own innumeracy, while statistics are often presented to us in highly confusing ways. With real world examples, such as the incidence of errors in tests for breast cancer or HIV, or in DNA fingerprinting, and the manipulation of statistics for evidence in court, he shows that our difficulty in thinking about numbers can easily be overcome.

This essential book illustrates how, with a few techniques, we can learn to uncloud our minds, demand helpfully presented information and turn ignorance into insight.