As a scientist, David Linden had devoted his career to understanding the brain processes and behaviors that are common to us all. That is, until a few years ago, when he found himself on OKCupid. Looking through that vast catalog of human difference, he got to thinking, where does it all come from? Why does one person have perfect pitch, a taste for hoppy beer, and an aversion to bathroom selfies? That is, what makes you, you, and me, me? In Unique, David Linden tells a riveting and accessible story of human individuality. Exploring topics that touch all of our lives-among them sexuality, gender identity, food preferences, biological rhythms, mood, personality, memory, and intelligence-Linden shows that human individuality is not simply a matter of nature versus nurture. Rather, it is a product of the complex, and often counterintuitive, interplay between our genetic blueprints and our experiences.