The Concept of Anxiety: A Simple Psychologically Orienting Deliberation on the Dogmatic Issue of Hereditary Sin (Kierkegaard's Writings, VIII)

Describes the nature and forms of anxiety, placing the domain of anxiety within the mental-emotional states of human existence that precede the qualitative leap of faith to the spiritual state of Christianity

• The Sickness Unto Death: A Christian Psychological Exposition For Upbuilding And Awakening (Kierkegaard's Writings, Vol 19) (v. 19)
• Fear and Trembling/Repetition : Kierkegaard's Writings, Vol. 6
• Either/Or, Part I (Kierkegaard's Writings, 3)
• Either/Or, Part II (Kierkegaard's Writings, Vol. 4)
• Philosophical Fragments/Johannes Climacus : Kierkegaard's Writings, Vol 7
• Practice in Christianity : Kierkegaard's Writings, Vol 20
• Works of Love : Kierkegaard's Writings, Vol 16
• Concluding Unscientific Postscript to Philosophical Fragments, Volume 1 (Kierkegaard's Writings, Vol 12.1)
• Either/Or: A Fragment of Life (Penguin Classics)
• Being and Nothingness