| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| best books about space exploration | 1.44 | 0.4 | 5413 | 72 | 34 |
| best | 0.8 | 0.7 | 806 | 88 | 4 |
| books | 0.67 | 0.1 | 3022 | 76 | 5 |
| about | 1.86 | 0.4 | 3982 | 30 | 5 |
| space | 1.32 | 0.6 | 928 | 65 | 5 |
| exploration | 0.47 | 0.9 | 2632 | 49 | 11 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| best books about space exploration | 0.64 | 0.3 | 9188 | 7 |
| best space exploration sci fi books | 1.46 | 0.2 | 7470 | 85 |
| book on space exploration | 0.03 | 0.3 | 2282 | 86 |
| best books about space | 1.51 | 0.8 | 5115 | 20 |
| best books on space travel | 0.53 | 1 | 927 | 62 |
| best books about the space program | 0.45 | 0.9 | 7133 | 47 |
| best books to read about space | 1.41 | 0.8 | 671 | 18 |
| great books about space | 1.1 | 0.8 | 7159 | 66 |
| best books about nasa space program | 1.55 | 0.1 | 4804 | 66 |
| top 10 books about space | 1.63 | 0.5 | 5551 | 22 |
| best books for space lovers | 0.33 | 0.3 | 345 | 21 |
| best books on exploration | 0.48 | 0.9 | 3453 | 100 |
| best books on space and universe | 0.27 | 0.8 | 4306 | 78 |
| best space fiction books | 1.96 | 0.6 | 3993 | 26 |
| history of space exploration book | 1.92 | 0.3 | 9833 | 12 |
| best space travel books fiction | 1.18 | 0.2 | 4060 | 85 |
