Tom Rath is an American author and a consultant on employee engagement, strengths, and well-being.

Sonia Purnell is a British writer and journalist who has worked at The Economist, The Daily Telegraph, and The Sunday Times.

Walter Seff Isaacson is an American journalist who has written biographies of Henry Kissinger, Benjamin Franklin, Leonardo da Vinci, Albert Einstein, Steve Jobs, Jennifer Doudna, and Elon Musk.

Ronald Chernow is an American writer, journalist, and biographer.

Marla Gibbs is an American actress, singer, comedian, writer, and television producer whose career spans seven decades.

William James Durant was an American historian and philosopher, best known for his eleven-volume work, The Story of Civilization, which contains and details the history of Eastern and Western civilizations.