| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| project gutenberg books by author | 0.12 | 0.4 | 539 | 71 |
| project gutenberg search by author | 0.99 | 0.7 | 8471 | 1 |
| project gutenberg free books | 0.42 | 0.8 | 9038 | 69 |
| best books on project gutenberg | 1.1 | 0.6 | 1511 | 78 |
| downloadable books on project gutenberg | 0.39 | 0.9 | 3691 | 12 |
| project gutenberg free books download | 0.95 | 0.3 | 7668 | 88 |
| project gutenberg books list | 1.7 | 0.1 | 6636 | 11 |
| project gutenberg popular books | 1.2 | 1 | 4416 | 68 |
| project gutenberg free pdf books | 0.82 | 0.6 | 8053 | 22 |
| read free books project gutenberg | 1.27 | 0.7 | 4973 | 25 |
| free downloadable books on project gutenberg | 1.37 | 0.1 | 6791 | 13 |
| gutenberg project free books online | 0.85 | 0.9 | 9070 | 71 |
