| title | ISBN-13 | year of publication |
|---|---|---|
| How to Run Seminars & Workshops: Presentation Skills for Consultants, Trainers and Teachers | 978-0-471-71587-0 | 2005 |
| How to Run Seminars & Workshops: Presentation Skills for Consultants, Trainers, and Teachers | 978-0-471-39729-8 | 2000 |
| How to Run Seminars and Workshops: Presentation Skills for Consultants, Trainers, Teachers, and Salespeople | 978-1-119-37434-3 | 2017 |
| Sciezka Perswazji | 978-83-88970-34-4 | 2007 |
| Sciezka perswazji. Wytrenuj umysl, aby myslec, dzialac i wplywac na innych... SZYBCIEJ | 978-83-62195-26-8 | 2010 |
| The Way of the Road Warrior: Lessons in Business and Life from the Road Most Traveled | 978-0-7879-8062-7 | 2005 |
L.J. · R.J. · R. L · Robert J. · Robert Jolles · Robert L.
Jossey-Bass · MT Biznes · Mt Biznes · Wiley