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Sinopsis(en Inglés)

No tenemos la sinopsis en tu idioma: se muestra la de la edición original.

This phenomenal bestseller * over 700,000 copies sold * changes readers? lives and helps them transform their organizations. In this new edition, the text has been updated and revised throughout to make it even more readable and powerful and a new section has been added that details the many different ways that people are using the book.