{"product_id":"9780349445724","title":"80\/20 Beliefs (2026)","description":"\u003cp\u003eRichard Koch explains how changing a few core beliefs can transform your life and provide lasting happiness. In his million-copy bestseller The 80\/20 Principle, he showed readers how to take advantage of the simple fact that 80% of results come from 20% of efforts. Here he explores how just a few core beliefs—often unconscious yet profoundly influential—shape our lives, happiness and success. By identifying and examining the toxic beliefs that cause unnecessary stress and reshaping them into positive beliefs that foster resilience and joy, we can enjoy a more fulfilling life.\u003c\/p\u003e","brand":"Little, Brown Book Group","offers":[{"title":"Default Title","offer_id":54025409855835,"sku":"9780349445724","price":41.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1787\/2513\/files\/0681339.jpg?v=1789064024","url":"https:\/\/czechmovie.com\/fr\/products\/9780349445724","provider":"czechmovie","version":"1.0","type":"link"}