- Mind over Misery: Reversing the Spiral of Depression and Anxiety: A Book for Sufferers and Their Friends (2000)
- The Happiness Formula (2002)
- Beating the Blues (2004)
- 100 Happiness Boosters: Simple Exercises to Lift Your Spirits and Improve Your Life (2005)
- The Feeling Good Handbook: Take Control of Your Mood, Your Life, and Your Well-being (2007)
- Living Well with Depression: Your Practical Guide to Managing Your Depression (2009)
- Beating Panic: A self-help guide to overcoming panics, phobias and social anxiety (2009)
- The Anxiety Workbook: Strategies to Overcome Stress and Increase Resilience (2011)
- Resilience: The Science of Mastering Life's Greatest Challenges (2012)
- The Empath's Toolkit: A Comprehensive Guide to Emotional Well-being and Relationships (2013)
- The Mindfulness Workbook: An Eight-Week Program to Train Your Brain to Be More Calm, Focused, and Happy (2014)
- The Worry Trap: How to Free Yourself from Worry and the Anxiety It Causes (2015)
- The Anger Trap: Free Yourself from the Bonds of Anger and Get On with Your Life (2016)
Fiction Books:
- Death in Devon: A Novel of Suspense (1997)
- The Long Weekend: A Novel of Suspense (1998)
- The Double Cross: A Novel of Suspense (1999)
- The House on the Hill: A Novel of Suspense (2001)
- The Stranger in the House: A Novel of Suspense (2002)
- The Body in the Library: A Novel of Suspense (2003)
- The Man in the Shadows: A Novel of Suspense (2005)
- The Secret in the Attic: A Novel of Suspense (2006)
- The Woman in White: A Novel of Suspense (2007)
- The Ghost in the Mirror: A Novel of Suspense (2008)