Kendall Robbins, Mel Robbins and Sawyer Robbins on stage at the end of the sold-out Let Them tour on May 2nd, 2025 in Boston, Massachusetts. Photograph: Scott Eisen/GettyThe Let Them Theory: A Life-Changing Tool That Millions of People Can’t Stop Talking About by mother and daughter Mel and Sawyer Robbins is Ireland’s bestselling book of 2025, shifting 38,885 copies. The Let Them Theory, published in Ireland in December 2024, has sold more than 8 million copies worldwide. It was recently named Irish Book of the Year. The Impossible Fortune is the UK’s bestselling title, followed by The Housemaid and Always Remember.

Source: The Irish Times January 01, 2026 06:30 UTC