Maybe you have to be british to enjoy this book.
The writer checks and debunks some very questionable products or services available on the UK market; however, not being from the UK, I don't really know what he's talking about, and I don't care to read the truth about products or services I have never heard of, like something called Detox or a program called Brain Gym.
Besides, it seems obvious enough that these products are nonsense, even without reading a full explanation.
Anyway, I'm glad there is someone willing to fight quacks and scammers.