Visible Language (The Journal of Typographic Research), Vol 02, 04, October 1968

Content includes:
Computer Assisted Letter Design, H. W. Mergler and P. M. Vargo
The Typography of El Lissitzky, L. Leeringvan Moorsel
Esthetic Values in Computerized Photocomposition, John W. Seybold
Changes in Letterforms Due to Technical Developments, Hermann Zapf
Context Clues as an Aid to the Reader, Robert Emans
Commentary: Linguistics, “Writing,” and Typography, Ernest Hoch
Excerpt: Musical Scores as Graphic Works