Author Walter Isaacson, whose biography of Steve Jobs went on sale last week, had more than 40 conversations with Jobs and also conducted interviews with the Apple founder's family, close friends, co-workers and rivals. (Associated Press)

Author Walter Isaacson, whose biography of Steve Jobs went on sale last week, had more than 40 conversations with Jobs and also conducted interviews with the Apple founder's family, close friends, co-workers and rivals. (Associated Press)