| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| best robert heinlein books | 0.52 | 0.6 | 8900 | 40 | 26 |
| best | 1.75 | 0.8 | 3453 | 6 | 4 |
| robert | 1.7 | 0.2 | 3554 | 6 | 6 |
| heinlein | 0.64 | 0.2 | 3609 | 64 | 8 |
| books | 0.34 | 0.7 | 7718 | 54 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| best robert heinlein books | 0.75 | 0.3 | 8303 | 52 |
