Marquis Who's Who is an American publisher known for producing directories containing short biographies of notable individuals. Founded in 1898 by Albert Nelson Marquis, the company aims to profile leaders and influential figures across various fields in American society and worldwide. Their publications include titles such as Who's Who in America , Who's Who in the World , Who's Who in Science and Engineering , and many others, covering a broad range of professions and regions

. The directories provide detailed biographical data including career achievements, education, awards, civic activities, and personal information. These books and their online versions are widely used by libraries, researchers, journalists, and professionals for reliable reference information

. Marquis Who's Who has evolved with technology, offering an online database called Marquis Biographies Online, which contains over 1.6 million biographies searchable by various criteria, providing real-time access to updated information

. The company is privately held, headquartered in Uniondale, New York, and continues to celebrate and document the lives of distinguished professionals globally

. In summary, Marquis Who's Who is a longstanding and respected publisher of biographical directories that serve as a key resource for information on accomplished individuals across many sectors.