Sometimes you long for a book that backs up your strongly held assertions with cold hard facts. For me, such a book arrived 2 years ago in the form of Richard Wilkinson and Kate Pickett’s ‘The Spirit Level: Why Greater Equality Makes societies Stronger’

Based on 30 years of research, their book proves that everything from teen pregnancy to poverty to mental illness is lower in a more equal society and proves it with a mass of data. It’s the sort of thing that going to come in very handy if you ever have the misfortune to get into an argument with some sign carrying Tea Party nutter.

Quotes your stats and gleefully watch as his head explodes.