POSITIVITY: HARD COVER  THE 3 TO 1 RATIO By Ph.d. Barbara L. Mint

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"Positivity: Top-notch Research Reveals the 3 to 1 Ratio That Will" by Ph.D. Barbara L. Fredrickson is a hardcover book published in English in 1861. The book delves into the 3 to 1 ratio that can lead to a more positive and fulfilling life.

12 GBP