9781422287231 Twitter®: How Jack Dorsey Changed the Way We Communicate

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Twitter has only become more popular since Jack left the company, with new users creating accounts everyday and millions of users tweeting all the time, including on new mobile platforms like the iPad.

Jack became a billionaire in 2013 when Square was valued at more than $3 billion. In 2014, Jack was estimated as being worth more than $2 billion on his own. Part of the reason his worth jumped so quickly is due to Twitter’s decision to be traded publicly. Although Jack did not work directly for the company at the time, he still owned part of it. The first stocks were expected to trade at $26 each during Twitter’s Initial