Book excerpt: How and why does sexual attraction happen? This book is an exploration of the universal yet highly individualized experience of being sexually attracted to another person. Incorporating interviews, research findings, and excerpts from romantic and erotic literature, lyrics, and film, Sexual Attraction: The Psychology of Allure explores a subject that is central to the human experience and highly relevant in not only personal, intimate interactions but also other relationships. Although the causes and effects of sexual attraction have been studied, sexual attraction itself-how we experience others in terms of their sexual attractiveness-remains a neglected, rarely researched topic. James Giles presents jargon-free information that is accessible and fascinating to the general reader as well as highly useful and informative to students and researchers in social psychology, sexology, sex and marital therapy, and relationship counseling. The book explores subjects such as how sexual attraction is fundamentally different from other forms of interpersonal attraction and how at the heart of sexual attraction lies the experience of allure-something that makes one feel helplessly drawn toward an intimate physical joining with the sexually attractive person. The allure of strangers, cross-sex friends, sexual friends ("friends with benefits"), and romantic partners are all addressed, revealing the often subtle heterosexual attraction that typically exists between men and women in all their relationships, including between those who are ostensibly "just friends."