Autor: Peter Rober, 28 de titluri

Peter Roberts,Herner Saeverot

Steve Krar,Arthur Gill,Peter Smid,Robert J. Gerritsen

Peter Lamb,Fiona Robertson Snape

Robert Newson,Peter Wade Martins,Adrian Little

Pam Taylor,Roger Addison,David Foster,Robert O'brien,Peter Inson,Samantha Brunner

Pam Taylor,Roger Addison,David Foster,Robert O'brien,Peter Inson,Manjari Tennakoon,Samantha Brunner

Robert Brooker,Eric Widmaier,Linda Graham,Peter Stiling

Peter Ellis,Mooi Standing,Susan B. Roberts

Robert A.m. Stern,Peter Morris Dixon

Robert Johr,H. Peter Soyer,Rainer Hofmann Wellenholf,Massimiliano Scalvenzi,Giuseppe Argenziano

Robert E. Manning,Laura Ellen Anderson,Peter Pettengill

Tony Robbins,Peter H. Diamandis,Robert Hariri

Robert J. Brooker,Eric P. Widmaier,Linda Graham,Peter D. Stiling

Jack Canfield,Mark Victor Hansen,Robert J. Ackerman,Theresa Peluso,Gary Seidler,Peter Vesgo

Pedro Gomez Carrizo,Dalai Lama,Brian Tracy,Robert T. Kiyosaki,Doreen Virtue,Charles Virtue,Joanna Gaines,Dr. Peter A. Levine,Alberto Villoldo,Stefanie Reich,Anja Ackermann,Dr. Mihaela Bilic

Pedro Gomez Carrizo,Dalai Lama,Brian Tracy,Robert T. Kiyosaki,Doreen Virtue,Charles Virtue,Joanna Gaines,Dr. Peter A. Levine,Alberto Villoldo,Stefanie Reich,Anja Ackermann,Dr. Mihaela Bilic,Samantha Shannon,Ionut Florea,Ana Hogas,Adrian Marin

Peter Menkhorst,Danny Rogers,Rohan Clarke

Tom Peters,Robert Waterman

Robert Houghton,Damien Peters

Robert Hisrich,Michael Peters,Dean Shepherd