The concept of the Uncanny was later elaborated on and developed by Sigmund Freud in his 1919 essay "Das Unheimliche" or, "The Uncanny", which also draws on the work of Hoffmann (whom Freud refers to as the "unrivaled master of the uncanny in literature").
Sigmund Freud's 1919 essay "Das Unheimliche" or, "The Uncanny", further elaborated on the concept, which was initially introduced by Hoffmann, whose work remains a seminal influence on the literary treatment of the uncanny.