| T18 National Standard Residential Electrician Workbook ICC Exam | $7,622.01 |
| T16 National Standard Master Electrician Workbook ICC Exam 2021 | $7,871.04 |
| 2015 Residential Plumbing Inspector | $7,622.01 |
| W25 National Standard Journeyman Plumber Practice Questions Work | $7,622.01 |
| F32 National Standard Residential Mechanical Exam Workbook | $7,622.01 |
| 2018 Residential Plumbing Inspector | $6,698.13 |
| 2012 Residential Plumbing Inspector | $153.98 |
| 66 Fire Inspector I 2012 | $7,820.01 |
| F11 National Standard General Contractor (A) 2015 | $7,820.01 |
| F12 National Standard General Building Contractor (B) 2015 | $8,315.01 |
| 2021 Residential Mechanical Inspector | $7,622.01 |
| W16 National Standard Master Electrician Workbook ICC Exam | $7,820.01 |
| 2012 Residential Mechanical Inspector | $76.99 |
| 2018 Commercial Building Inspector | $7,820.01 |
| G18 National Standard Residential Electrician Workbook ICC Exam | $7,622.01 |
| 2012 Commercial Mechanical Inspector | $7,820.01 |
| W32 National Standard Residential Mechanical Exam Workbook | $923.88 |
| 2015 Commercial Plumbing Inspector | $1,065.87 |
| 2021 Residential Building Inspector | $692.91 |
| 2021 Residential Plumbing Inspector | $5,543.28 |
| 67 Fire Inspector II 2021 | $6,477.18 |
| G24 National Standard Master Plumber Questions Workbook ICC Exam | $2,609.70 |
| F24 National Standard Master Plumber Questions Workbook ICC Exam | $737.91 |
| 66 Fire Inspector I 2021 | $157.98 |
| 2018 Residential Building Inspector | $5,389.30 |
| 2021 Commercial Building Inspector | $236.97 |
| 67 Fire Inspector II 2015 | $7,741.02 |
| G31 Journeyman Mechanical Exam 2018 Paperback Version | $327.96 |
| 2012 Commercial Electrical Inspector | $1,105.86 |
| 2015 Commercial Mechanical Inspector | $157.98 |
| F17 National Standard Journeyman Electrician Questions Workbook | $1,700.79 |
| 2021 Commercial Mechanical Inspector | $655.92 |
| 2018 Commercial Plumbing Inspector | $434.95 |
| G16 National Standard Master Electrician Workbook ICC Exam 2018 | $491.94 |
| 2015 Residential Mechanical Inspector | $923.88 |
| F13 National Standard Residential Building Contractor (C) 2015 | $1,295.84 |
| W12 National Standard General Building Contractor (B) | $573.93 |
| G17 National Standard Journeyman Electrician Questions Workbook | $983.88 |
| 67 Fire Inspector II 2018 | $394.95 |
| 2015 Residential Building Inspector | $307.96 |
| W24 National Standard Master Plumber Questions Workbook ICC Exam | $327.96 |
| 2018 Commercial Mechanical Inspector | $868.89 |
| W31 National Standard Journeyman Mechanical Questions Workbook | $461.94 |
| 2012 Residential Building Inspector | $76.99 |
| 2015 Residential Electrical Inspector | $153.98 |
| W17 National Standard Journeyman Electrician Questions Workbook | $473.94 |
| 2018 Commercial Electrical Inspector | $631.92 |
| G25 Journeyman Plumber Practice Questions Workbook 2018 | $327.96 |
| W11 National Standard General Contractor (A) | $538.93 |
| 2012 Commercial Plumbing Inspector | $327.96 |
| F25 National Standard Journeyman Plumber Practice Questions Work | $230.97 |
| G29 National Standard Master Mechanical Questions Workbook | $81.99 |
| W18 National Standard Residential Electrician Workbook ICC Exam | $157.98 |
| W13 National Standard Residential Building Contractor (C) | $157.98 |
| G12 Building Contractor (B) 2018 | $86.99 |
| 66 Fire Inspector I 2015 | $78.99 |
| 2015 Commercial Building Inspector | $78.99 |