59 books
by Rolf Dobelli
3.85 of 39,274
4.00 of 7,092
3.71 of 3,413
3.99 of 1,475
3.49 of 119
3.48 of 118
3.83 of 94
3.88 of 78
3.45 of 62
3.18 of 67
3.52 of 58
4.12 of 41
3.45 of 47
2.96 of 48
3.18 of 38
3.41 of 22
3.32 of 22
4.46 of 13
