| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| best book series to read | 0.3 | 0.8 | 4343 | 22 |
| best book series to read for teens | 1.37 | 0.5 | 6709 | 38 |
| best book series to read for adults | 0.94 | 0.7 | 9762 | 55 |
| best book series to read for men | 0.95 | 0.8 | 1537 | 13 |
| best book series to read to kids | 1.8 | 0.8 | 2927 | 11 |
| best sci-fi book series to read | 0.82 | 0.7 | 1735 | 77 |
| best sci-fi book series to read in 2021 | 0.58 | 0.2 | 512 | 94 |
| best crime series book to read | 1.67 | 0.7 | 9064 | 85 |
| best book series for beginning readers | 0.26 | 0.2 | 6381 | 83 |
| best comic book series to read | 1.48 | 0.9 | 3324 | 5 |
| best books to read for teens | 1.09 | 0.4 | 77 | 46 |
| best book series for teenagers | 0.46 | 0.6 | 9519 | 83 |
| most popular book series for teens | 0.86 | 0.7 | 8684 | 33 |
| top book series for teens | 0.13 | 0.3 | 5643 | 63 |
