- 365 Days With Self-discipline: 365 Life-altering Thoughts on Self-control, Mental Resilience, and Success (Simple Self-Discipline)
- Tägliche Selbstdisziplin: Tägliche Gewohnheiten und Übungen um Selbstdisziplin aufzubauen und um Ihre Ziele zu erreichen
- How to Build Self-Discipline: Resist Temptations and Reach Your Long-Term Goals (Simple Self-Discipline)
- How to Build Self-Discipline to Exercise: Practical Techniques and Strategies to Develop a Lifetime Habit of Exercise
- Grit: How to Keep Going When You Want to Give Up