| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| free historical mystery books | 0.24 | 0.8 | 7712 | 91 | 29 |
| free | 0.55 | 1 | 2780 | 39 | 4 |
| historical | 0.01 | 0.2 | 1770 | 8 | 10 |
| mystery | 1.41 | 0.9 | 2244 | 15 | 7 |
| books | 1.31 | 0.5 | 369 | 1 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| free historical mystery books | 1.15 | 0.8 | 1826 | 21 |
| free kindle books historical mystery | 1.13 | 1 | 5998 | 50 |
| free historical romance mystery books | 0.3 | 0.7 | 1215 | 41 |
| historical fiction mystery books | 1.98 | 0.4 | 2138 | 63 |
| historical mystery series books | 1.91 | 0.3 | 1621 | 67 |
| free books mystery books | 0.51 | 0.6 | 4133 | 50 |
| mystery of history books | 0.42 | 0.6 | 2345 | 18 |
| historical mystery book series | 0.01 | 0.9 | 2651 | 63 |
| free classic mystery books | 0.77 | 0.4 | 2849 | 17 |
| historical fiction mystery series books | 1.83 | 0.8 | 2868 | 24 |
| mystery books for free | 1.96 | 0.4 | 6716 | 77 |
| best historical mystery novels | 0.57 | 0.4 | 9204 | 52 |
| famous books of mystery | 0.97 | 0.3 | 7113 | 53 |
| list of mystery books | 0.11 | 1 | 8369 | 51 |
| historical fiction mystery novels | 1.52 | 0.3 | 517 | 32 |
| history of mystery novels | 0.01 | 0.8 | 7700 | 66 |
