Millions of people are embracing a little two-word mantra and helping the creator of it hit the top of the charts. Mel ...

Robbins wrote “The Let Them Theory” with her other daughter, Schuyler Robbins. When asked how she feels about all the success ...

The Let Them Theory' publishes on Dec. 31 — just in time for the new year Mel Robbins ... full potential, taking risks and ...

Author Mel Robbins sits down with TODAY’s Savannah Guthrie to talk about her new book, “The Let Them Theory,” about allowing ...