Jim Cramer, born on February 10, 1955, in Wyndmoor, Pennsylvania, is an American television personality, author, and former hedge fund manager. He is best known as the host of CNBC's "Mad Money," where he provides investment advice and market analysis. Cramer co-founded TheStreet, an investment news website, and has authored several books on investing and finance. With his energetic and often theatrical presentation style, he has become a prominent and influential figure in the financial media industry. Cramer's insights and commentary on the stock market have made him a trusted source for many individual investors.