A HOTLY anticipated biography of Elon Musk describes the turbulent tycoon as a man driven by childhood demons, obsessed with bringing human life to Mars and who demands that staff be “hardcore.”

“Elon Musk” is written by star biographer Walter Isaacson, a former editor in chief of Time magazine who is best known for his best-selling portrayal of Apple founder Steve Jobs as well as his looks into the lives of Albert Einstein and Leonardo da Vinci.