You don't have to start at the beginning. I started You and Me by Susan Greenfield, at the end. Then I read the penultimate paragraph. After that I dipped about, finding good bits to rediscover later. You and Me, the neuroscience of identity, is a generous basket of goods. Wherever you read, at whatever moment you get on the bus, or decide to get off, this is the stuff of ourself, ourselves, and it's riveting. Getting this close in to the synapses. Susan Greenfield is professor of synaptic pharmacology. And, once you have wrapped your head around that, you are ready for anything.