| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| robert a heinlein books | 1.09 | 0.4 | 374 | 12 | 23 |
| robert | 1.75 | 0.8 | 9942 | 70 | 6 |
| a | 1.21 | 0.1 | 7555 | 32 | 1 |
| heinlein | 0.6 | 0.6 | 5123 | 32 | 8 |
| books | 1.97 | 0.1 | 9148 | 66 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| robert a heinlein books | 1.02 | 0.9 | 6215 | 20 |
| robert a heinlein books in order | 1.1 | 0.8 | 7747 | 5 |
| robert a heinlein books list | 0.03 | 0.5 | 7817 | 82 |
| robert a heinlein books ranked | 1.24 | 0.9 | 9959 | 22 |
| best robert heinlein books | 0.48 | 0.8 | 817 | 30 |
| free online books by robert heinlein | 0.64 | 0.4 | 9919 | 20 |
| robert heinlein kindle books | 1.45 | 0.4 | 1186 | 9 |
| robert heinlein juvenile books list | 0.95 | 1 | 5097 | 91 |
| robert heinlein books in chronological order | 1.66 | 0.5 | 4595 | 92 |
| robert heinlein books in order of publication | 1.8 | 0.1 | 8202 | 93 |
| robert anson heinlein books in order | 0.07 | 0.3 | 9702 | 25 |
| robert a. heinlein books | 0.26 | 0.9 | 3563 | 11 |
| best books by robert heinlein | 1.57 | 0.1 | 2356 | 93 |
| free robert heinlein books | 1.03 | 0.1 | 5100 | 25 |
