72 years old (Born on May 20, 1952)
Happy Birthday, Walter Isaacson! You've chronicled the lives of visionaries like Steve Jobs and Henry Kissinger with such precision that even Siri probably quotes your biography. Your books have inspired countless readers to dream big—though we're still waiting for you to reveal how many black turtlenecks it takes to write a bestseller.From "The Wise Men" who shaped history, to capturing tech's greatest innovator in print—you've truly mastered storytelling better than most CEOs master PowerPoint slides. May this birthday be as timelessly brilliant as your writing—and may no one ever attempt an unauthorized biography on you (unless it's hilarious). Cheers!