| title | ISBN-13 | year of publication |
|---|---|---|
| How to Become an Emergency Dispatcher | 978-1-929308-06-4 | 1996 |
| How to Prepare for an Interview and Obtain a Job as a Firefighter | 978-1-929308-02-6 | 1994 |
| How to Prepare for an Interview and Obtain a Job as a Law Enforcement Officer | 978-1-929308-00-2 | 1998 |
| The Law Enforcement Assessment Center | 978-1-929308-05-7 | 1991 |