How much should we trust the polls on the latest electoral campaign? When a physician tells us that a diagnosis of cancer is 90% certain or a nutritionist tells us what is healthy to eat, what should we believe? Questions such as these are greatly important, yet many of us have only a vague sense of how to answer them. In Is That a Fact?, Mark Battersby aims not only to explain how to identify misleading statistics and research, but also to give readers...