| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| free online history book | 1.62 | 0.7 | 6299 | 55 | 24 |
| free | 1.57 | 0.1 | 2862 | 75 | 4 |
| online | 1.02 | 0.3 | 130 | 27 | 6 |
| history | 0.98 | 0.3 | 1212 | 55 | 7 |
| book | 1.9 | 0.9 | 6885 | 40 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| free online history books | 0.89 | 0.3 | 3264 | 27 |
| free online history books to read | 1.03 | 0.8 | 7102 | 71 |
| black history books online free | 1.54 | 0.9 | 1177 | 36 |
| free online pennsylvania history books | 1.41 | 0.9 | 8230 | 7 |
| free black history books pdf online | 1.36 | 0.2 | 2297 | 83 |
| history books online free reading | 1.3 | 0.2 | 6899 | 36 |
| books online for free for history lovers | 1.52 | 0.6 | 4212 | 71 |
| historical books to read online | 1.36 | 0.6 | 4540 | 49 |
| free online history book | 0.28 | 0.9 | 7695 | 8 |
| books to read for history | 1.04 | 0.6 | 2354 | 71 |
| free historical books to read | 0.1 | 0.4 | 6279 | 2 |
| free history books to download | 1.34 | 1 | 8895 | 35 |
| free historical books online | 0.85 | 0.6 | 6479 | 15 |
| free books about history | 1.33 | 0.5 | 4248 | 44 |
| best online history books | 0.2 | 0.8 | 1605 | 15 |
