| 2015 Residential Building Inspector | $76.99 |
| F31 National Standard Journeyman Mechanical Questions Workbook | $81.99 |
| W32 National Standard Residential Mechanical Exam Workbook | $76.99 |
| W31 National Standard Journeyman Mechanical Questions Workbook | $153.98 |
| 2012 Residential Building Inspector | $76.99 |
| 2015 Commercial Electrical Inspector | $78.99 |
| 2012 Commercial Electrical Inspector | $78.99 |
| W29 National Standard Master Mechanical Questions Workbook | $78.99 |
| G29 National Standard Master Mechanical Questions Workbook | $81.99 |
| W11 National Standard General Contractor (A) | $76.99 |
| 2018 Residential Building Inspector | $76.99 |
| T17 National Standard Journeyman Electrician Questions Workbook | $78.99 |