David Klass earned his BFA in architecture, fine art and art education at Pratt Institute. He then apprenticed with the noted sculptor Theodore Roszak.
To further his understanding of the human body he studied anatomy at Columbia College of Physicians and Surgeons. He received the Helen Foster Barnett prize at the National Academy of Design. He is listed in the Dictionary of American Sculptors and is a member of The National Sculpture Society. He has taught at Pratt Institute, Parsons School of Design, Bennington College, The University of the Arts, The New York Academy of Art and The Loveland Academy of Fine Art. His work is in the Metropolitan Museum of Art, The Jewish Museum and numerous private collections.