Marguerite Agniel, author of the 1931 book "The Art of the Body : Rhythmic Exercise for Health and Beauty", wrote a piece called "The Mental Element in Our Physical Well-Being" for "The Nudist", an American magazine, in 1938; it showed nude women practising yoga, accompanied by a text on attention to the breath. The social historian Sarah Schrank comments that it made perfect sense at this stage of the development of yoga in America to combine nudism and yoga, as "both were exercises in healthful living; both were countercultural and bohemian; both highlighted the body; and both were sensual without being explicitly erotic."