| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| best books to read about space | 0.73 | 1 | 5432 | 96 |
| best books about space | 1.67 | 0.6 | 1673 | 7 |
| best books to learn about space | 1.6 | 0.4 | 6514 | 71 |
| best fiction books about space | 0.62 | 0.4 | 1314 | 79 |
| best space books for kids | 1.79 | 0.9 | 5801 | 98 |
| best space books for beginners | 0.13 | 1 | 5141 | 58 |
| great books about space | 1.42 | 0.3 | 3471 | 61 |
| best space books for adults | 1.65 | 0.2 | 4649 | 94 |
| top 10 books about space | 1.3 | 0.6 | 8034 | 26 |
| good space books fiction | 1.46 | 0.8 | 3836 | 61 |
| best books about the space program | 1.95 | 0.4 | 9019 | 94 |
| best books on space travel | 0.8 | 0.4 | 1421 | 57 |
| books related to space | 0.47 | 0.8 | 8169 | 3 |
| best books on space and universe | 0.5 | 0.8 | 4631 | 3 |
| best adult books about space | 0.39 | 0.9 | 4075 | 95 |
| best science fiction space books | 1.68 | 0.4 | 6677 | 89 |
| best books for space lovers | 1.09 | 0.9 | 6930 | 20 |
| free books about space | 0.89 | 0.4 | 6631 | 28 |
| best book for space knowledge | 1.02 | 0.3 | 6255 | 40 |
| books about space fiction | 0.94 | 0.7 | 983 | 38 |
| space books to read | 1.24 | 0.7 | 5631 | 6 |
| best kids books about space | 0.78 | 0.5 | 9976 | 67 |
| best picture books about space | 1.08 | 0.3 | 3722 | 56 |
