Book excerpt: Jacob is a man with an overwhelming attraction to female feet. The Baroness is a clothing designer and evangelical sadist. Roy is a wedding band singer entranced by his step daughter. Ron and Laura are simply in love - only Laura lost both her legs in a car accident, and Ron is beguiled by a beauty many would be blind to. How do we deal with desire? Our own, and the desires of others? How do we comprehend desires that are extreme, or unacceptable? And how do those who have them, live with them? In A Map of Desire Daniel Bergner takes us on a journey into human passion suffered, endured, and celebrated. Desire is a sometimes anarchic, sometimes ecstatic, sometimes destructive, sometimes redeeming, and always powerful force.Immersing himself in it through the people whose lives he follows and the scientists he spends time with who are trying to understand it, slowly he exposes and illuminates layers of our humanity.