| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| the secrets of mars book | 1.19 | 0.7 | 1393 | 82 |
| the secrets of mars | 0.58 | 0.5 | 1553 | 5 |
| the book of mars | 1.82 | 0.3 | 3102 | 63 |
| the book the lands of mars | 1.84 | 0.4 | 7546 | 85 |
| the land of mars book | 0.08 | 0.7 | 4639 | 12 |
| book about living on mars | 0.54 | 0.6 | 5866 | 58 |
| mars review of books | 0.96 | 0.7 | 6407 | 74 |
| mission to mars book | 1.43 | 0.6 | 3661 | 92 |
| of mars book series | 1.33 | 0.5 | 7713 | 36 |
| life on mars book | 1.31 | 0.8 | 1709 | 26 |
| fiction books about mars | 0.26 | 0.7 | 1991 | 95 |
| which books has a detail about mars | 1.14 | 0.3 | 1476 | 81 |
| the mars room book | 0.39 | 0.6 | 1070 | 4 |
| science fiction books about mars | 0.6 | 0.5 | 8748 | 88 |
| mars book for kids | 1.15 | 0.1 | 4234 | 86 |
| children's book about mars | 1.95 | 0.4 | 5679 | 65 |
| books about mars for kids | 0.69 | 0.4 | 795 | 69 |
