| title | ISBN-13 | year of publication | 
|---|---|---|
| A Daddy's Saving Grace: a modern day parable about money | 978-87-7691-552-0 | 2010 | 
| Nlp in selling: How to use your mental strength to motivate yourself, build trust and close the deal | 978-87-7691-430-1 | 2009 | 
| NLP in Selling. How to use your mental strength to motivate yourself, build trust and close the deal | 978-87-7691-639-8 | 2009 | 
| Sales & Marketing Success in your small business | 978-87-7114-295-2 | 2011 | 
M J · Mark J. · R.J. · R. M. · Robert J. · Robert Jakobsen · Robert M. · Robert Mark