| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| history of aviation books | 1.63 | 0.6 | 8836 | 15 | 25 |
| history | 0.65 | 1 | 2787 | 38 | 7 |
| of | 0.72 | 0.8 | 6682 | 3 | 2 |
| aviation | 1.88 | 0.1 | 8025 | 95 | 8 |
| books | 0.38 | 0.6 | 586 | 34 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| history of aviation books | 1.17 | 0.6 | 1907 | 17 |
