'Mind-blowing ... It is a hugely important book ... His story is crucial' Matt Ridley, The Times

One of the world's top behavioural geneticists argues that we need a radical rethink about what makes us who we are

The blueprint for our individuality lies in the 1% of DNA that differs between people. Our intellectual capacity, our introversion or extraversion, our vulnerability to mental illness, even whether we are a morning person - all of these aspects of our personality are profoundly shaped by our inherited DNA differences.