Hacking Happiness Why Your Personal Data Counts and How Tracking It Can Change the World

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A Paperback by John Havens

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View other formats and editions of Hacking Happiness Why Your Personal Data Counts and How Tracking It Can Change the World by John Havens

Publisher: Tarcher/Putnam,US
Publication Date: Publication Date:
ISBN13: 9780399173196, 978-0399173196
ISBN10: