- The Meaning of Anxiety – Rollo May
- Anxious: Using the Brain to Understand and Treat Fear and Anxiety – Joseph E. LeDoux
- The Age of Anxiety – W. H. Auden
- The Sickness unto Death – Søren Kierkegaard
- The Concept of Anxiety: A Simple Psychologically Oriented Deliberation in View of the Dogmatic Problem of Hereditary Sin – Søren Kierkegaard
- The Neuropsychology of Anxiety: An Enquiry Into the Functions of the Septo-Hippocampal System – Jeffrey Alan Gray