| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| free open textbook library | 1.32 | 1 | 248 | 67 | 26 |
| free | 1.45 | 0.7 | 1771 | 64 | 4 |
| open | 1.47 | 0.9 | 993 | 94 | 4 |
| textbook | 1.62 | 0.7 | 1182 | 46 | 8 |
| library | 1.24 | 0.7 | 4805 | 99 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| free open textbook library | 1.9 | 0.8 | 2130 | 20 |
