Spiral Dynamics-Mastering Values, Leadership and Change – Don Beck and Chris Cowan

Here's an overview of the prominent keywords and a list of famous authors:

Business and Sales: Explore business strategies, sales skills, entrepreneurship, and brand-building from authors like Joe Wicks, Jillian Michaels, and Tony Horton.

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All the courses on WSOlib are led by top authors and experts in their respective fields. Rest assured that the knowledge and skills you acquire are reliable and highly applicable.