The thesis discusses the career of art librarian Judith A. Hoffberg (1934-2009), focusing on her co-founding of the Art Libraries Society of North America (ARLIS/NA), her publishing of the journal Umbrella, her artists' books collection, her participation in an international mail art community, and her relationship to feminist print culture. Hoffberg's career is situated within a history of artists' publications and information networks, the alternative press, the women's movement, and art librarianship.