| 2015 Commercial Mechanical Inspector | $236.97 |
| F29 National Standard Master Mechanical Questions Workbook | $327.96 |
| 2012 Residential Electrical Inspector | $76.99 |
| W32 National Standard Residential Mechanical Exam Workbook | $76.99 |
| W25 National Standard Journeyman Plumber Practice Questions Work | $1,077.86 |
| F13 National Standard Residential Building Contractor (C) 2015 | $242.97 |
| 2015 Residential Plumbing Inspector | $307.96 |
| F32 National Standard Residential Mechanical Exam Workbook | $461.94 |
| 2018 Residential Plumbing Inspector | $384.95 |
| 2018 Residential Building Inspector | $76.99 |