| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| heinlein future history series | 0.6 | 1 | 5710 | 73 | 30 |
| heinlein | 1.66 | 0.8 | 8814 | 78 | 8 |
| future | 0.48 | 0.4 | 9504 | 81 | 6 |
| history | 1.73 | 0.1 | 9828 | 4 | 7 |
| series | 0.92 | 0.4 | 5899 | 22 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| heinlein future history series | 0.5 | 0.4 | 962 | 48 |
