| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| library of congress online audio books | 1.9 | 0.3 | 4030 | 58 |
| library of congress online books | 1.48 | 0.5 | 9179 | 90 |
| national library of congress audio books | 1.29 | 0.1 | 8363 | 75 |
| library of congress books to read online | 1.31 | 0.2 | 6435 | 33 |
| library of congress free books online | 0.91 | 1 | 9184 | 54 |
| library of congress audio files | 0.16 | 0.1 | 2415 | 97 |
| library of congress online library | 0.51 | 0.4 | 99 | 8 |
| library of congress audio recordings | 1.08 | 1 | 9197 | 15 |
| the library of congress online | 0.69 | 0.7 | 2750 | 20 |
| library of congress downloadable books | 1.4 | 1 | 2849 | 51 |
| library of congress for books | 0.39 | 0.1 | 9505 | 18 |
| library of congress free book download | 1.1 | 0.5 | 3584 | 20 |
| library of congress music series | 0.66 | 0.7 | 5796 | 73 |
| download library of congress | 0.6 | 0.4 | 2465 | 54 |
