Jason Zweig is an American financial journalist known for his work as an investing and personal finance columnist for The Wall Street Journal since 2008. He has held various prominent positions in the financial media, including serving as a senior writer at Money magazine and as the mutual-funds editor at Forbes magazine. Additionally, he has contributed as a guest columnist for Time and cnn.com, showcasing his expertise in financial topics.

Zweig is the editor of the revised edition of Benjamin Graham's "The Intelligent Investor," which is highly regarded in the investment community and praised by Warren Buffett. He is also the author of several notable books, including "The Devil's Financial Dictionary," a satirical take on Wall Street terminology, and "Your Money and Your Brain," which explores the neuroscience and psychology behind financial decision-making. His contributions extend to serving on the editorial boards of Financial History magazine and The Journal of Behavioral Finance.