Assaraf, John; Smith, Murray
Joaquín Lorente
Salvador Figueros
Miguel Ángel Bañuelos
Sharma, Robin
Mandino, Og
Blanchard, Kenneth; Johnson, Spencer
Franc Ponti; J. M. Ferrer-arpí
Dan Roam
Sanchez Alvarez, Javier
Seth Godin
Pilar Jericó