54 authors — O

Olivia Telford is a mental health author and educator known for writing accessible guides on cognitive behavioral therapy and emotional well-being.

Olivier Sibony is a professor, author, and consultant specializing in strategic decision-making and behavioral strategy.

Olli Sovijärvi is a Finnish medical doctor specializing in functional medicine and holistic health.

Olli Sovijärvi is a Finnish medical doctor specializing in functional medicine and holistic health.

Ollie Johnston (1912–2008) and Frank Thomas (1912–2004) were two of Walt Disney’s famed 'Nine Old Men,' the core group of animators who defined the studio’s style and storytelling approach.

Ollie Johnston (1912–2008) and Frank Thomas (1912–2004) were two of Walt Disney’s famed 'Nine Old Men,' the core group of animators who defined the studio’s style and storytelling approach.

Omar Abbosh is a business executive and former Chief Strategy Officer at Accenture.

Omar Abbosh is a business executive and former Chief Strategy Officer at Accenture.

Oprah Winfrey is an American talk show host, television producer, actress, author, and philanthropist.

Ora Nadrich is a certified life coach, mindfulness teacher, and founder of the Institute for Transformational Thinking.

Oren Cass is an American public policy expert and the founder of American Compass, a think tank focused on conservative economic policy.

Oren Jay Sofer is a teacher of meditation, mindfulness, and communication.

Oren Klaff is an investment banker, entrepreneur, and expert in capital raising and deal-making.

Oren Patashnik es un matemático y científico de la computación especializado en algoritmos y combinatoria.

The Organisation for Economic Co-operation and Development (OECD) is an intergovernmental organization founded in 1961 to promote economic growth, prosperity, and sustainable development among its member countries through evidence-based policy analysis and international cooperation.

Orhan Pamuk is a Turkish novelist, screenwriter, and academic, born in Istanbul in 1952.

Ori Brafman is a bestselling author and organizational expert known for his work on leadership, networks, and human behavior.

Ori Brafman is a New York Times bestselling author and organizational expert known for his work on human behavior and leadership.

Orlanda Ruthven is a researcher focused on labor and livelihoods in South Asia.