| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| best historical mystery series books | 1.72 | 0.1 | 1164 | 12 | 36 |
| best | 1.65 | 0.3 | 2253 | 65 | 4 |
| historical | 1.81 | 0.5 | 2870 | 30 | 10 |
| mystery | 0.12 | 0.3 | 184 | 36 | 7 |
| series | 0.92 | 0.6 | 1303 | 55 | 6 |
| books | 0.5 | 0.9 | 6971 | 32 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| best historical mystery series books | 1.94 | 0.4 | 7015 | 40 |
| best mystery series books of all time | 0.82 | 0.5 | 8686 | 68 |
| best mystery series books | 1.44 | 0.1 | 6723 | 72 |
| best historical fiction mystery books | 1.46 | 0.7 | 8098 | 27 |
| best history mystery books | 0.29 | 0.1 | 4917 | 23 |
| good historical mystery books | 0.42 | 0.3 | 7144 | 75 |
| top mystery series books | 1.31 | 0.6 | 137 | 4 |
| best mystery book series list | 1.71 | 0.6 | 7715 | 33 |
| best historical mystery novels of all time | 1.01 | 0.7 | 6898 | 43 |
| best mystery series novels | 1.42 | 0.3 | 9446 | 3 |
| best book mystery series | 0.66 | 0.3 | 5229 | 82 |
| best mystery book series of all time | 1.79 | 0.9 | 3904 | 67 |
| popular mystery book series | 1.33 | 0.1 | 4922 | 75 |
| free historical mystery novels | 1.5 | 1 | 1467 | 4 |
