Judith Hoffberg (May 19, 1934 – January 16, 2009) was a librarian, archivist, lecturer, a curator and art writer, and editor and publisher of Umbrella, a newsletter on artist's books, mail art, and Fluxus art.
Judith Hoffberg (May 19, 1934 – January 16, 2009) was a librarian, archivist, lecturer, a curator and art writer, and editor and publisher of Umbrella, a newsletter on artist's books, mail art, and Fluxus art. (en)