Ryan Holiday is an American author and media strategist widely regarded as one of the most influential voices in the modern revival of Stoic philosophy. Born in Sacramento, California, he began his career as a media strategist and marketing director before rising to international acclaim with books including The Obstacle Is the Way, Ego Is the Enemy, and The Daily Stoic, works that translate ancient Stoic philosophy into practical guidance for resilience, discipline, and clear thinking. Largely self-educated after leaving college early to apprentice under author Robert Greene, he went on to build the Daily Stoic platform, extending his reach through newsletters, podcasts, and a popular bookstore in Bastrop, Texas. His books have found a wide readership among athletes, entrepreneurs, and military leaders, helping bring the teachings of philosophers like Marcus Aurelius, Seneca, and Epictetus to a modern mainstream audience. Known for his clear, disciplined prose and unflinching application of ancient wisdom to modern challenges, Holiday's work continues to shape modern nonfiction writing and inspire readers across the world.