Irene Soave
Bompiani
Dale Breckenridge Carnegie
Richard Carlson
Anthony Robbins
Frédérick Leboyer
Eric Berne
Fulvio Scaparro
Aldo Carotenuto
Susan Quilliam
Alex Comfort
Corinne Maier
Paolo Landi
Helen Singer Kaplan
Richard Carlson, Kristine Carlson
Thomas Patrick Malone, Patrick Thomas Malone