Susan Cain
Dale Breckenridge Carnegie
Anne Marie Canda
Anthony Robbins
Anthony Robbins
Anthony Robbins
Anthony Robbins
Dale Breckenridge Carnegie
Eric Berne
Fabiola De Clercq
Aldo Carotenuto
Dale Breckenridge Carnegie
Eric Berne
Eric Berne
Manuel Sirianni
Aldo Carotenuto
Dale Breckenridge Carnegie
Dale Breckenridge Carnegie
Giuseppe Caliceti
Patti Breitman, Connie Hatch
Anna Meldolesi
Antonella Boralevi
Cesare Lombroso
Roberto Giardina