Book excerpt: Read Andrew Trees's posts on the Penguin Blog. A smart, entertaining, and eye-opening look at the science of love, publishing for Valentine's Day Relationships should be so simple. You meet someone. You fall in love. You live happily every after. This "romantic story line" has shaped our thinking about relationships for centuries. But the fairy tale is deeply flawed, and researchers today are making shocking discoveries about how and why we choose the people we love. Drawing from the latest studies in economics, brain science, game theory, evolutionary psychology, and other fields, Decoding Love takes on a topic we all think we understand-how we fall in love-and illustrates that most of our assumptions are wrong. Along the way, Andrew Trees offers surprising new insights into the nature of attraction and desire, as well as an intimate look at the strange intersection of romance and the modern world of dating.