'A must read' Philippa Perry 'Rich, revelatory and, in the best way, unsettling . . . the mixture of scientific curiosity, bookish thoughtfulness and medical compassion is reminiscent of Oliver Sacks' Sunday Times A twinge of sadness, a rush of love, a knot of loss, a whiff of regret. Memories have the power to move us, often when we least expect it, a sign of the complex neural process that continues in the background of our everyday lives. Memory is a process that shapes us: filtering the world around us, informing our behaviour and feeding our imagination.