The Concept of Anxiety
The Concept of Anxiety (): "A Simple Psychologically Orienting Deliberation on the Dogmatic Issue of Hereditary Sin", is a philosophical work written by Danish philosopher Søren Kierkegaard in 1844. The original 1944 English translation by Walter Lowrie (now out of print), had the title The Concept of Dread. "The Concept of Anxiety" was dedicated "to the late professor Poul Martin Møller". He used the pseudonym Vigilius Haufniensis (which, according to Kierkegaard scholar Josiah Thompson, is the Latin transcription for "the Watchman" of Copenhagen) for "The Concept of Anxiety".
The Mask of Sanity
The first edition was published in 1941, with the subtitle then being 'An attempt to re-interpret' rather than as later 'to clarify'. Cleckley says in the preface that the book "grew out of an old conviction which increased during several years while I sat at staff meetings in a large neuropsychiatric hospital". He added that after commencing full-time teaching duties he found similar patients to be as prevalent in a general hospital, outpatient clinic and the community. In later editions he explains that the basic concepts presented in 1941 were based primarily on "adult male psychopaths hospitalized in a closed institution" for several years. Cleckley had worked for a number of years at a United States Veterans (military) Administration hospital, before taking up full-time teaching responsibilities at the University of Georgia School of Medicine.