The villanelle poetic form is the poetic form Mad Girl's Love Song is written in and appears in the novel The Bell Jar by Sylvia Plath.
 It is written in the villanelle poetic form and is generally included in the biographical note appended to Plath's novel, "The Bell Jar". 
The Bell Jar is the only novel written by the American writer and poet Sylvia Plath. 
