The self-help phenom’s new book is all about letting others do as they may. Can she follow her own advice? Social Media, Podcasts, Books and Literature, The Let Them Theory: A Life-Changing Tool That Millions of People Can’t Stop Talking About (Book), Content Type: Personal Profile, Robbins, Mel (1968- ), Psychiatry and Psychiatrists The self-help phenom’s new book is all about letting others do as they may. Can she follow her own advice? NYT > Business