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Book cover image: Head Strong: The Bulletproof Plan to Activate Untapped Brain Energy to Work Smarter and Think Faster—in Just Two Weeks | New York Times Bestseller | Wall Street Journal Bestseller | USA Today Bestseller

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Book cover image: Head Strong: The Bulletproof Plan to Activate Untapped Brain Energy to Work Smarter and Think Faster—in Just Two Weeks | New York Times Bestseller | Wall Street Journal Bestseller | USA Today Bestseller

Get high-res version (best for print)

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Dave Asprey

Author Photo: Dave Asprey

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