| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| free full text online books | 1.57 | 0.7 | 6244 | 61 |
| the pillow book full text read online free | 0.56 | 0.4 | 9109 | 60 |
| free online textbooks online | 1.85 | 0.4 | 4695 | 68 |
| free online textbooks for free | 0.22 | 0.8 | 805 | 30 |
| free books online textbooks | 1.35 | 0.4 | 2312 | 44 |
| textbooks for free online | 0.79 | 0.2 | 129 | 8 |
| read free textbooks online | 0.34 | 0.6 | 621 | 46 |
| free online textbooks download | 1.05 | 1 | 9011 | 65 |
| all textbooks online free | 1.07 | 0.7 | 2841 | 13 |
| free online download textbook | 0.38 | 0.1 | 8902 | 8 |
| online free textbooks pdf | 1.48 | 0.4 | 1648 | 63 |
| free online textbook pdf | 1.49 | 0.7 | 6393 | 85 |
| where to download free textbooks online | 0.55 | 0.5 | 1505 | 71 |
| website for free textbooks | 0.13 | 0.9 | 4448 | 96 |
| best free textbooks online | 1.45 | 0.4 | 7796 | 67 |
| free online version of textbooks | 1.5 | 0.2 | 5503 | 85 |
| free textbook downloads online | 0.85 | 0.3 | 5788 | 5 |
