Advances in medical science have accustomed us to the idea that many of our body organs can be replaced with organs donated by some else. However, the one organ that it seems inconceivable to transplant from on person to another is the brain. Why is this? what is it about our brains that makes us different as animals, and individual as people? The author looks at these and many other questions - at the ways in which our minds identify who we are, what we can do, and how we feel. Under the guidance of Professor Susan Greenfield, the book follows the development of the brain through the stages of a human life, from the beginning in the womb, during infancy and childhood, to the emotional explosion of adolescence, and finally the wisdom of maturity.