I began researching and writing Untrue: Why Nearly Everything We Believe About Women, Lust, and Infidelity Is Wrong and How the New Science Can Set Us Free  nearly three years ago. I didn't quite know what I was getting myself into. Infidelity holds a unique force as a taboo in our culture. It’s not discussed very often and, when it is, it usually happens under a cloud of scandal or in hushed tones, with moralizing language. But as I worked on this project, I got to hear stories of women who confounded all the clichés—they sought out sex, not emotional connection; they were sexually adventurous to an extent that we don't usually associate with women; they had libidos that were strong; or they were wilting in monogamous relationships and looking for a solution. I found myself exploring topics like polyamory and hotwifing and Skirt Club and more, all of which afford a glimpse into larger tectonic shifts in our sexual beliefs. In the wake of the #MeToo movement and other global activism, more stories from women’s own perspectives are finding their way into the public square. When we decouple female sexuality from male desire, we begin to see that female sexuality is more surprising, weird, and powerful than we've imagined. And now, on Untrue's publication day (!!!), it is clearer than ever that we are overdue for a revolution in how we approach infidelity and female sexuality. New research from Dr. Alicia Walker shows yet more evidence that infidelity, contrary to conventional wisdom, can increase desire between spouses and improve overall contentment (even after the affair has ended). Another heartening sign: Kristen Stewart, who was embroiled in hysterical scandal after an affair, is experiencing a renaissance. In fact, she is not only staging a comeback but taking new thrills in asserting the importance of female sexuality and autonomy in her public comments. Meredith Chivers continues to challenge the notion that women are the less sexed sex, with plenty of strong data from her lab. These developments make Untrue seem as timely as could be. All of which is to say, I am excited to share this book with readers and start building a world where women have total sexual autonomy and receive the pleasure we all deserve. And where monogamy really is your choice, rather than something foisted upon you. I hope you'll grab a copy and join me in this revolution!