- S.U.M.O. (Shut Up, Move On): The Straight-Talking Guide to Creating and Enjoying a Brilliant Life
- Self Confidence
- How to Deal with Other People: How to Have Confidence When Dealing with Other People
- Yesss!: The Sumo Secrets to Being a Positive, Confident Teenager
- S.U.M.O. Your Relationships: How to Handle Not Strangle the People You Live and Work With