By Alan Chambers, Richard Hale
By Frances Hesselbein, James Collins
By Welch, Jack
By Donald Sull
By David Rock (Sydney, Australia), Linda J. Page (PhD, Adler International Learning, Toronto, Canada)
By Marty Holleran
By Paul Nunes, Larry Downes, Omar Abbosh
By G. Williamson McDiarmid, Yong Zhao (University of Oregon University of Oregon University of Oregon University of Oregon, USA)
By Steve Glowinkowski
By BJ Gallagher, Warren H. Schmidt
By George A. Steiner
By Peter Drucker
By Gregory H Watson
By Talula Cartwright
By Michael Watkins
By Daniel Dana
By Center for Creative Leadership (CCL), Michael E. Kossler, Sonya Prestridge
By A
By Center for Creative Leadership (CCL), Henry Browning, Ellen Van Velsor
By Center for Creative Leadership (CCL), Maxine A. Dalton
By Michael M. Lombardo, Robert W. Eichinger
By George Eckes
By Robert E. Quinn
By Tim Bartlett, Jackie Beere, MBA OBE
By Covey
By Robert Slater
By Pat Hutchinson
By Margaret J. Wheatley
By W. Chan Kim, Renée Mauborgne, Renee A. Mauborgne
By Joachim Klewes, Ralf Langen