 Lock and Key: The Initiation
| 2016 | 3.5 | ? pages? duration |
 1984
| 1949 | 4.21 | 328 pages? duration |
 Eat That Frog!
| 2001 | 3.78 | 156 pages? duration |
 Emotional Intelligence: Why It Can Matter More Than IQ
| 1995 | 3.75 | 384 pages? duration |
 Getting Things Done: The Art of Stress-Free Productivity
| 2001 | 3.81 | ? pages? duration |
 Social intelligence
| 2006 | 3.33 | 403 pages? duration |
 El Poder de Las Palabras
| 4 | ? pages? duration | |
 Focus: The Hidden Driver of Excellence
| 2013 | 3.42 | 320 pages? duration |
 Secrets of the Millionaire Mind: Mastering the Inner Game of Wealth
| 1999 | 1.5 | 224 pages? duration |