| best books to improve memory | 1.81 | 0.3 | 3821 | 28 | 69 |
| best books to improve communication skills | 0.9 | 0.8 | 3147 | 42 | 32 |
| best books to improve english | 0.54 | 0.1 | 9293 | 29 | 100 |
| best books to improve vocabulary | 0.01 | 0.1 | 5759 | 32 | 87 |
| best books to improve yourself | 1.02 | 0.7 | 1886 | 30 | 85 |
| best books to improve sales skills | 0.55 | 0.1 | 6536 | 34 | 72 |
| best books to improve your life | 0.26 | 1 | 9653 | 31 | 50 |
| best books to improve knowledge | 0.24 | 0.8 | 9947 | 31 | 75 |
| best books to improve mental health | 0.73 | 1 | 3725 | 35 | 89 |
| best books to improve writing skills | 0.62 | 1 | 7484 | 36 | 49 |
| best books to improve reading comprehension | 0.76 | 0.6 | 5592 | 43 | 57 |
| best books to improve marriage | 1.88 | 0.7 | 4835 | 30 | 70 |
| best books to improve leadership skills | 0.82 | 0.8 | 6425 | 39 | 37 |
| best books to improve emotional intelligence | 0.94 | 0.3 | 7996 | 44 | 58 |
| best books to improve english speaking skills | 1.87 | 0.5 | 102 | 45 | 57 |
| best books to read for self improvement | 1.38 | 0.8 | 5060 | 39 | 48 |
| the best self improvement books | 1.4 | 1 | 2258 | 31 | 89 |
| best books to read to improve vocabulary | 1.77 | 0.6 | 9764 | 40 | 66 |
| best books to read to improve english | 1.32 | 0.1 | 140 | 37 | 24 |
| best books to read for self improvement men | 0.2 | 0.6 | 6075 | 43 | 83 |
| books on how to improve your memory | 1.5 | 0.2 | 4620 | 35 | 51 |
| books to improve memory and concentration | 0.91 | 1 | 7256 | 41 | 99 |
| best books on memory | 0.25 | 1 | 7344 | 20 | 5 |
| best memory improvement books | 0.7 | 0.7 | 1716 | 29 | 76 |
| best books on memory techniques | 1.14 | 0.7 | 8482 | 31 | 24 |
| books for memory improvement | 0.5 | 0.3 | 3812 | 28 | 71 |
| books on increasing memory | 0.01 | 0.9 | 3750 | 26 | 44 |
| top 10 memory improvement books | 0.69 | 0.1 | 9780 | 31 | 19 |
