Elinor Glyn was a British novelist and scriptwriter who specialised in romantic fiction, which was considered scandalous for its time, although her works are relatively tame by modern standards. She popularized the concept of the it-girl, and had tremendous influence on early 20th-century popular culture and, possibly, on the careers of notable Hollywood stars such as Rudolph Valentino, Gloria Swanson and, especially, Clara Bow.

An "it girl" is an attractive young woman who is perceived to have both sex appeal and a personality that is especially engaging.