| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| best books on project gutenberg | 1.66 | 0.2 | 1564 | 42 |
| best books on project gutenberg reddit | 0.2 | 0.5 | 5579 | 83 |
| best audio books on project gutenberg | 1.51 | 0.4 | 1085 | 91 |
| read free books project gutenberg | 0.91 | 0.4 | 696 | 91 |
| gutenberg project free books | 0.06 | 0.4 | 3147 | 83 |
| gutenberg project books online | 1.39 | 0.4 | 3299 | 75 |
| project gutenberg books by author | 0.48 | 0.3 | 3524 | 34 |
| project gutenberg free books download | 1.2 | 0.3 | 5467 | 62 |
| books free online project gutenberg | 0.93 | 0.1 | 5018 | 6 |
| books online free to read project gutenberg | 1.81 | 1 | 5788 | 39 |
