| 2001 | 3.96 |
| 2003 | 4 |
| 2006 | 3.93 |
| 2011 | 4.21 |
Crucial Conversations: Tools for Talking When Stakes Are High - Kerry Patterson
- Joseph Grenny
- Ron McMillan
- Al Switzler
| 2001 | 4.05 |
The 7 Habits of Highly Effective People: Powerful Lessons in Personal Change | 1988 | 3.73 |
| 2011 | 4.14 |
Drive: The Surprising Truth About What Motivates Us | 2009 | 3.9 |
Lean Thinking: Banish Waste and Create Wealth in Your Corporation - James P. Womack
- Daniel T. Jones
| 1996 | 4 |
Now, Discover Your Strengths - Marcus Buckingham
- Donald O. Clifton
| 2001 | 3.75 |
Emotional Intelligence 2.0 - Travis Bradberry
- Jean Greaves
| 2003 | 3.62 |
Never Eat Alone: And Other Secrets to Success, One Relationship at a Time | 2005 | 3.88 |
The Personal MBA: Master the Art of Business | 2010 | 3.78 |
How to Win Friends and Influence People | 1913 | 3.92 |
Hackers & Painters: Big Ideas from the Computer Age | 2004 | 3.89 |
| 2011 | 4.38 |
| 2009 | 3.64 |
Built to Last - James C. Collins
- Jerry I. Porras
| 1994 | 3.9 |
Blue Ocean Strategy - W. Chan Kim
- Renée Mauborgne
| 1994 | 3.44 |
The One Minute Manager - Kenneth H. Blanchard
- Spencer Johnson
| 1981 | 3.44 |
The Tipping Point: How Little Things Can Make a Big Difference | 2000 | 3.85 |
The Innovator's Dilemma: The Revolutionary Book that Will Change the Way You Do Business | 1997 | 3.81 |