Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
books online for free for adults | 1.11 | 0.9 | 8499 | 14 |
free online books to read for adults | 0.48 | 0.1 | 1480 | 46 |
free online audio books for adults | 1.83 | 0.9 | 4772 | 13 |
free reading books online for adults | 0.96 | 0.8 | 8047 | 7 |
free online books to read for adults pdf | 0.77 | 0.4 | 3697 | 89 |