| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| history of aviation book | 1.42 | 0.6 | 2160 | 36 | 24 |
| history | 1.39 | 0.3 | 2817 | 22 | 7 |
| of | 0.88 | 1 | 6567 | 74 | 2 |
| aviation | 0.38 | 0.4 | 8240 | 14 | 8 |
| book | 1.1 | 0.9 | 2377 | 92 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| history of aviation book | 1.27 | 0.9 | 4330 | 70 |
