I have to be honest, I wasn't particularly looking forward to this book, and put off reading it for quite a while. In part this because anything vaguely medical makes me feel queasy, while as someone who suffers from a serious chronic gastrointestinal problem, Mary Roach's subtitle 'adventures on the alimentary canal' was not encouraging. As it happens, though, the experience was not all bad. In her usual style, Roach pulls in a lot of characters along the way, from sword swallowers to 'fartistes' (sic) including the inevitable lighting of inflammable gasses, which is where a lot of the fun in the book comes from. Her humorous writing style lacks the subtlety of a Bill Bryson - if I'm honest, I find it a trifle irritating - but a lot of people do like it, with newspaper reviews describing it as 'seriously funny' and 'laugh a minute.' What's more you certainly will learn a lot more about a part of our bodily system that few of us ...