| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| us history book free | 0.21 | 0.9 | 917 | 27 | 20 |
| us | 0.77 | 0.7 | 6373 | 87 | 2 |
| history | 0.84 | 0.4 | 3368 | 100 | 7 |
| book | 0.26 | 0.2 | 7099 | 30 | 4 |
| free | 0.23 | 0.4 | 7233 | 70 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| us history book free | 1.86 | 0.7 | 2699 | 68 |
