| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| science fiction space books | 1.19 | 0.1 | 5677 | 61 | 27 |
| science | 1.56 | 0.7 | 5407 | 47 | 7 |
| fiction | 1.69 | 0.6 | 6673 | 59 | 7 |
| space | 0.79 | 0.9 | 9798 | 40 | 5 |
| books | 0.48 | 0.6 | 6560 | 57 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| science fiction space books | 0.42 | 0.7 | 2889 | 34 |
| science fiction outer space books | 1.84 | 1 | 6398 | 14 |
| best space opera science fiction books | 1.52 | 0.2 | 7069 | 91 |
| best space science fiction books | 0.71 | 0.2 | 3215 | 84 |
| free space science fiction books | 1.36 | 0.9 | 8651 | 71 |
| humorous space science fiction books | 1.71 | 0.2 | 174 | 99 |
| best space war science fiction books | 1.67 | 0.5 | 2503 | 97 |
| science fiction outer space movies | 0.95 | 0.1 | 56 | 12 |
| books about outer space | 1.51 | 0.4 | 6169 | 87 |
| outer space books for kids | 1.85 | 0.5 | 5086 | 72 |
| books set in outer space | 1.87 | 0.5 | 4911 | 71 |
| books about space fiction | 1.21 | 0.4 | 1202 | 95 |
| free science fiction space books | 1.72 | 0.2 | 3307 | 98 |
| space exploration science fiction books | 1.48 | 0.3 | 6919 | 44 |
| outer space children's books | 1.5 | 0.4 | 1579 | 42 |
| fiction books about space exploration | 1.2 | 0.8 | 8119 | 8 |
| space science fiction book series | 1.73 | 0.6 | 5751 | 46 |
| outer space books for kindergarten | 1.29 | 1 | 9948 | 28 |
