Acclaimed photographer François Rousseau explores the innate eroticism of dancers, applauding the mental focus and physical dedication required to perfect the artistry of human movement with his new book Men in Motion: The Art and Passion of the Male Dancer. Rousseau focuses his lens on more than 60 professional dancers -- from Broadway to hip-hop and from companies as diverse as Alvin Ailey and Opera de Paris -- revealing the intense concentration, physical strength, and artistic determination they display through their facial expressions as well as through their lithe, pliant bodies.