| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| book series on kindle unlimited | 0.34 | 1 | 3486 | 71 |
| kindle unlimited free book series | 0.58 | 0.2 | 4922 | 62 |
| kindle unlimited western book series | 0.68 | 0.1 | 139 | 20 |
| grizzly killer book series kindle unlimited | 0.17 | 0.9 | 7935 | 92 |
| best book series on kindle unlimited | 1.05 | 1 | 6150 | 56 |
| zodiac academy book series kindle unlimited | 1.72 | 0.1 | 2650 | 1 |
