Nearly three and a half years have passed since Apple cofounder Steve Jobs died from pancreatic cancer, but his successor as CEO, Tim Cook, kept his friend's contact information in his iPhone long afterward.
As revealed in Becoming Steve Jobs: The Evolution of a Reckless Upstart into a Visionary Leader, which hits physical and digital shelves on Tuesday, Cook wasn't quick to delete Jobs' contact details following his 2011 death.
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