| F32 National Standard Residential Mechanical Exam Workbook | $6,775.12 |
| W25 National Standard Journeyman Plumber Practice Questions Work | $5,158.33 |
| W18 National Standard Residential Electrician Workbook ICC Exam | $4,660.41 |
| G17 National Standard Journeyman Electrician Questions Workbook | $4,345.47 |
| G16 National Standard Master Electrician Workbook ICC Exam 2018 | $5,411.34 |
| W11 National Standard General Contractor (A) | $4,234.45 |
| 2012 Commercial Plumbing Inspector | $5,165.37 |
| 66 Fire Inspector I 2021 | $1,974.75 |
| 2021 Residential Plumbing Inspector | $2,155.72 |
| G11 General Building Contractor (A) 2018 | $1,475.82 |
| 2021 Residential Mechanical Inspector | $1,693.78 |
| G24 National Standard Master Plumber Questions Workbook ICC Exam | $2,870.67 |
| 2021 Commercial Plumbing Inspector | $2,696.69 |
| F16 National Standard Master Electrician Workbook ICC Exam | $4,940.39 |
| 2021 Residential Building Inspector | $1,077.86 |
| 2015 Commercial Electrical Inspector | $5,213.34 |
| 2012 Residential Mechanical Inspector | $2,540.67 |
| 2021 Commercial Building Inspector | $1,263.84 |
| G13 Building Contractor (C) 2018 | $1,385.82 |
| 2021 Commercial Mechanical Inspector | $1,639.80 |
| T17 National Standard Journeyman Electrician Questions Workbook | $868.89 |
| G31 Journeyman Mechanical Exam 2018 Paperback Version | $737.91 |
| W31 National Standard Journeyman Mechanical Questions Workbook | $461.94 |
| T16 National Standard Master Electrician Workbook ICC Exam 2021 | $163.98 |
| W17 National Standard Journeyman Electrician Questions Workbook | $3,791.52 |
| F24 National Standard Master Plumber Questions Workbook ICC Exam | $3,853.53 |
| W24 National Standard Master Plumber Questions Workbook ICC Exam | $2,869.65 |
| 2015 Residential Building Inspector | $3,310.57 |
| 2021 Residential Electrical Inspector | $76.99 |
| 2021 Commercial Electrical Inspector | $1,184.85 |
| F18 National Standard Residential Electrician Workbook ICC Exam | $2,540.67 |
| 67 Fire Inspector II 2021 | $78.99 |
| F13 National Standard Residential Building Contractor (C) 2015 | $2,186.73 |
| 2015 Residential Electrical Inspector | $230.97 |
| F29 National Standard Master Mechanical Questions Workbook | $1,967.76 |
| F12 National Standard General Building Contractor (B) 2015 | $2,015.76 |
| 66 Fire Inspector I 2018 | $1,658.79 |
| 66 Fire Inspector I 2015 | $4,186.47 |
| 2012 Commercial Mechanical Inspector | $4,186.47 |
| F25 National Standard Journeyman Plumber Practice Questions Work | $2,078.73 |
| W16 National Standard Master Electrician Workbook ICC Exam | $1,579.80 |
| 2018 Commercial Mechanical Inspector | $2,132.73 |
| 2012 Residential Building Inspector | $2,925.62 |
| 2015 Commercial Building Inspector | $3,238.59 |
| G18 National Standard Residential Electrician Workbook ICC Exam | $1,924.75 |
| W13 National Standard Residential Building Contractor (C) | $236.97 |
| 2012 Commercial Electrical Inspector | $552.93 |
| 2018 Residential Mechanical Inspector | $769.90 |
| 2012 Commercial Building Inspector | $552.93 |
| 2018 Residential Building Inspector | $538.93 |
| 2018 Residential Electrical Inspector | $461.94 |
| G12 Building Contractor (B) 2018 | $956.89 |
| 2018 Commercial Electrical Inspector | $394.95 |
| 2018 Commercial Plumbing Inspector | $1,043.88 |
| W12 National Standard General Building Contractor (B) | $409.95 |
| 2018 Residential Plumbing Inspector | $615.92 |
| 2012 Residential Electrical Inspector | $307.96 |
| 2018 Commercial Building Inspector | $78.99 |
| 67 Fire Inspector II 2015 | $78.99 |
| W29 National Standard Master Mechanical Questions Workbook | $394.95 |
| 2015 Commercial Plumbing Inspector | $163.98 |
| F31 National Standard Journeyman Mechanical Questions Workbook | $573.93 |
| F11 National Standard General Contractor (A) 2015 | $315.96 |
| 2015 Residential Plumbing Inspector | $76.99 |
| 2012 Residential Plumbing Inspector | $76.99 |
| F17 National Standard Journeyman Electrician Questions Workbook | $80.99 |