Jack Dorsey is one of Silicon Valley's eccentrics. If he was a character in a movie, you'd think he was too cliche. Acutely earnest and idealistic, he passionately believes that tech can bring ...

Jack Dorsey ... as a leader, Dorsey has focused on pushing himself, and his favorite books offer insight into his thought process. From a Product Hunt Q&A last year and his personal Twitter ...

Twitter co-founder Jack Dorsey is stepping down as chief executive of the company. He will be replaced by the current chief technical officer, Parag Agrawal, Twitter said. Mr Dorsey, who co ...