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A portrait of billionaire Twitter co-founder Jack Dorsey, in tweets

By Christopher Mims
New YorkPublished Last updated This article is more than 2 years old.
Jack Dorsey via Instagram
Before there was Twitter, Jack Dorsey coded dispatch systems for taxi cabs.
Jack Dorsey via Twitter
Dorsey takes new Square employees on a walk to the Gandhi statue in San Francisco.
Jack Dorsey via Twitter
San Francisco, where Square’s new, 150,000 square foot office has room for the 400 additional employees Dorsey wants to hire.

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