Michael A. Singer is an American author, public speaker, and entrepreneur. He is best known for his New York Times best-selling book, The Untethered Soul, which has sold over two million copies worldwide. Singer is also the founder of the nonprofit organization, The Option Institute, which provides educational programs and services to help people live more fulfilling lives. He has been featured in numerous publications, including The New York Times, The Wall Street Journal, and The Washington Post. Singer is passionate about helping people find inner peace and joy, and his work has been praised by many spiritual leaders, including Deepak Chopra and Eckhart Tolle.