Sex Signals: The Biology of Love offers new insights about why people behave the way they do when they meet, flirt, touch, and fall in love. Dr. Perper's ideas are based on more than 900 hours of scientific observations made wherever men and women meet -- in singles bars, restaurants, parties, train stations. He concludes that intimacy develops not through magic or "good vibes" but through a clearly defined courtship sequence that involves the two people in a mutual, escalating, and interlocking series of stages: from the approach, through talking, turning to face each other, touching, and synchronizing movements. Dr. Perper sees love and intimacy as part of a tapestry that weaves together strands from culture, history, psychology, and biology. Sex Signals will interest general readers as well as biologists, social scientists, and students of human behavior and sexuality.