By Entrepreneur Staff Walter Isaacson, the American author who wrote the bestselling biography of Apple co-founder Steve Jobs, will work on the life story of Tesla and SpaceX president Elon Musk. “If you’re curious about Tesla, SpaceX, and my general goings on, @WalterIsaacson is writing a biography,” Musk tweeted Wednesday night. Related: The 7 Leadership Lessons of Steve Jobs On social media, Musk noted that Isaacson accompanied him for several days to gather material for the book. “At last … someone will penetrate the silent, mysterious and incognito facade that that particular subject projects … “, tweeted another user, to which Musk responded with a laughing emoji. Isaacson is also the author of biographies on Benjamin Franklin and Albert Einstein. Ashlee Vance published a book based on interviews with Musk in 2015 before Tesla became the world’s most valuable car company.