Of all the books I have read so far this year, I'd say that I learned most from reading Bad Science.
Ben Goldacre primary bread comes from being a junior doctor, but he is also a journalist; he writes a weekly column in the Guardian. The articles he pens concern themselves with the hypocrisy and bunk that are prevalent within the world of medicine. He looks at how the pharmaceutical industry pretty much fix medical trials so the results flatter their new products, the failings of science journalism in the media, and the 'pseudoscience and quackery' that is homeopathy.
He also devotes chapters to individuals such as Gillian McKeith (who is shown to have a limited grasp of even the most basic biology) and Matthius Rath (who has 'denounced antiretoviral medication as toxic and dangerous, while claiming that his vitamin pills could reverse the course of AIDS'). Dr Goldacre takes time to explain how these people peddle bad science and shows they are in fact extremely dangerous (and litigious).
Proof that his work had been absorbed and understood came last week, when newspapers and the broadcast media started reporting (with increasing hysteria) that a schoolgirl had died after being given her cervical cancer vaccination. It subsequently came to light that it was not the vaccination that had caused the death, but as Ben Goldacre notes in his most recent column, [as of 3rd October 2009] I can see 1,592 articles on Google News about one poor girl who died unexpectedly after receiving the cervical cancer vaccine, and only 363 explaining the postmortem found a massive and previously undiagnosed tumour in her chest'.
The above is a mini-repeat of the MMR, which should definitely be taught as a module in Media Studies classes (and which can be read about on the Bad Science website). In fact, I would suggest that Ben Goldacre's book should be enforced reading material for, at the very least, all journalists and those working in the field of medicine.