A graphic biography of the pioneering, free-spirited “Mother of Modern Dance”   In 1899, performing in the drawing rooms of London’s elite, Isadora Duncan (1877–1927) was already laying the foundations for modern dance. Her performances were visceral, free-flowing, and expressive; she danced barefoot. The 22-year-old from California was shattering the conventions of traditional ballet and, in doing so, enchanting high society.   In Isadora, Julie Birmant and Clément Oubrerie