After four years of collaboration with choreographer Peter Martins and the New York City Ballet, Henry Leutwyler was granted unprecedented backstage access to the Company during the winter of 2012. The resulting book, Ballet , reflects 30 years of his passion for the art form, realized in 30 days of photographing. Leutwyler inhabited the shadows of the stage and became "invisible," recording images of the dancers using nothing more than his 35mm Leica...