| Birth Place: | New York, New York, U.S. |
| Death Place: | Harrison, New York |
| Alma Mater: | Columbia University Harvard University |
| Genre: | literary criticism and biography |
| Notable Works: | Biography of Mark Twain |
| Awards: | Guggenheim Fellowship (1942) |
Maxwell David Geismar (August 1, 1909 - July 1979) was an American writer, literary critic and biographer of Mark Twain.[1] [2] He also penned the introduction to Eldridge Cleaver's Soul on Ice.[3] A teacher at Sarah Lawrence College for many years, he signed "The Triple Revolution", sent to President Lyndon Johnson in 1964.