| title | ISBN-13 | year of publication |
|---|---|---|
| Colorado Exam Prep PSI | 978-1-4277-9262-4 | 2009 |
| Colorado Real Estate Principles Volume 2 | 978-1-4277-9260-0 | 2010 |
| Exam Prep PSI | 978-1-4277-9370-6 | 2010 |
| Modern Real Estate Practice Workbook | 978-1-4277-9265-5 | 2011 |
| National PSI Exam Prep, Third Edition | 978-1-4277-1161-8 | 2013 |