| W29 National Standard Master Mechanical Questions Workbook | $78.99 |
| 2015 Residential Building Inspector | $76.99 |
| 2018 Residential Plumbing Inspector | $76.99 |
| W32 National Standard Residential Mechanical Exam Workbook | $76.99 |
| 2021 Residential Plumbing Inspector | $76.99 |
| 2015 Residential Electrical Inspector | $153.98 |
| 2012 Residential Building Inspector | $153.98 |
| F31 National Standard Journeyman Mechanical Questions Workbook | $163.98 |