Jim Cramer is a well-known American television personality, author, and former hedge fund manager. He is best recognized as the host of the financial news program Mad Money on CNBC, where he provides investment advice and stock market analysis. Cramer has a background in finance, having co-founded the hedge fund Cramer Berkowitz. In addition to his television career, Cramer is a prolific writer and has authored several books on investing. He is also a co-founder of TheStreet, a financial news and services website. Cramer's energetic style and straightforward approach have made him a popular figure in the world of finance.