I was concerned when I began this book that it would be full of sentimental 'primitive awe'. But it's actually a hugely informative, thoughtful study of how the global industrialisation of food production has left us vulnerable and very much deprived. He is fair and even-handed - the 'green revolution' was only intended to meet a short-term problem after the second world war, it is our own greed that has made it a totally unsustainable means of feeding populations. This is a long and involved read but well worth the investment. Ultimately it is optimistic that we still have time to change the way we think about agriculture and food production.