"In a compact, deftly organized book, which author Susan Greenfield always refers to as an essay, she ambitiously attempts two formidable quests: 1) to determine a physical basis for identity, and 2) to pin down what she calls “subjective firsthand experience of what it’s like to be you and me” (p. 130). With barely a preface or introduction, she gets right down to her topic systematically." Read more of Linda Chown's detailed and thought provoking review.