By Robin Sharma
By David Downes, Paul Rock
By Rutger Bregman
By Stephen Lea
By Daniel Thompson, Collins Kids, Julia Murray
By P. D. Ouspensky
By David A. Crighton, Graham J. Towl
By Dey, Ian
By Peter Mitchell (University of Nottingham), Fenja Ziegler (University of Lincoln)
By Smith, Eliot R., Mackie, Diane M., Claypool, Heather M.
By Nicolson, Paula, Ussher, Jane
By Paul Cooper, Colin J. Smith, Graham Upton
By Laurie K. MacKinnon
By W. Paul Vogt, Dianne C. Gardner, Lynne M. Haeffele
By Anthony D. Pellegrini (University of Minnesota, USA.), Frank Symons, John Hoch
By Sharon F. Rallis, Gretchen B. Rossman
By Hannah Grayson, Nicki Hitchcott, Laura Blackie, Stephen Joseph (University of Nottingham, and Honorary Consultant Psychologist in Psychotherapy, Nottinghamshire NHS Healthcare Trust.)
By Bruce J. Avolio, Bernard M. Bass
By Abigail Marsh
By Cory Muscara
By Stephen Klemich, Mara Klemich, Tommy Spaulding
By Cardwell, Mike, Clark, Liz, Meldrum, Claire, Mike Cardwell, Liz Clark, Claire Meldrum
By Allen E. Bergin, Sol L. Garfield
By Hodkin, Michelle
By Pennycook, Alastair
By McGraw, Dr. Phillip C
By Fanon, Frantz
By Banyard, Philip
By James Smith
By Hayes, Nicky