| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| free ebooks pdf download sites | 0.28 | 0.4 | 902 | 62 |
| free books pdf download sites | 0.21 | 0.5 | 1838 | 31 |
| free ebook download sites pdf | 0.5 | 0.3 | 5640 | 100 |
| ebook pdf download free site | 1.38 | 0.5 | 2262 | 10 |
| free online pdf books download sites | 1.43 | 0.8 | 1836 | 90 |
