​Kurt Lewin
Change Artist / OD Heretic
​Through a study involving school children, Kurt Lewin identified three different leadership styles















Leadership
Styles
Autocratic
Democratic
Laissez-Faire

Group Dynamics





http://psychology.about.com/od/leadership/a/leadstyles.htm
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http://changingminds.org/disciplines/leadership/styles/lewin_style.htm
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http://www.expertprogrammanagement.com/2010/06/leadership-styles-lewin-theory-lewin/​
http://www.rcgd.isr.umich.edu/history/
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Leadership Styles and Group Dynamics Bibiography and Additional Resources
Based on Lewin's early work in the 1930's, Bruce Tuckman proposed his 5 phase Model of Forming, Storming, Norming, Performing & Adjourning. They are depicted here as clips from the movie "Remember the Titans".
Leader vs Manager