| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| books on homeland security | 0.49 | 0.4 | 2979 | 99 | 26 |
| books | 1.21 | 0.9 | 6947 | 94 | 5 |
| on | 1.56 | 1 | 5694 | 42 | 2 |
| homeland | 0.01 | 0.9 | 7918 | 47 | 8 |
| security | 1.08 | 0.8 | 746 | 95 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| books on homeland security | 0.3 | 0.2 | 1647 | 42 |
