You may think me lazy, but there is an inherent satisfaction for book reviewers in hitting upon a book such as this – you know you will have very little bearing on its sales, and what's more you hardly even need describe it – just dip in here and there for a few quotes, and sit back and relax knowing your job is done. ''Only 1% of people who buy marmalade are under the age of 28. Treadmills were once the harshest form of punishment after the death penalty. Naked mole-rats can survive for 18 minutes without oxygen by turning themselves into plants.'' And the whole of page 52. There, job done – and the creators of this book certainly have done their job to perfection.