The 7 Habits of Highly Effective People: Powerful Lessons in Personal Change (25th Anniversary Edition) (English...15. November 2013von Stephen R. Covey
Who Moved My Cheese? An Amazing Way to Deal With Change In Your Work and In Your Life4. März 1999von Spencer Johnson
The Gifts of Imperfection: Let Go of Who You Think You're Supposed to Be and Embrace Who You Are27. August 2010von Brene Brown Ph.D.