John C. Maxwell

Books
21 cech skutecznego lidera 21 cech skutecznego lidera
21 cech skutecznego lidera
2022
The 5 Levels of Leadership The 5 Levels of Leadership
The 5 Levels of Leadership
2011
The 21 Irrefutable Laws of Leadership The 21 Irrefutable Laws of Leadership
The 21 Irrefutable Laws of Leadership
2007
Change Your World Change Your World
Change Your World
2021
Self-Improvement 101 Self-Improvement 101
Self-Improvement 101
2009
How Successful People Think How Successful People Think
How Successful People Think
2009